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Is tea good for you


is tea good for you

All teas can be “good” for you, but teas that contain this amino acid are especially beneficial because they have been shown to keep you calm. Reading the tea leaves about whether drinking green tea is good for you. Even in the United States, long a coffee-dominated country. Does drinking green tea really have health benefits? Research does suggest that green tea is indeed one of the healthiest drinks around.

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Is tea good for you

Is drinking tea bad for you?

Do you fancy a cuppa? We drink, on average, three mugs a day. But you might want to try another tipple after hearing the case of a 47-year-old woman, published in the New England Journal of Medicine (NEJM), who developed brittle bones and lost all of her teeth after drinking too much tea.

Tea may not be so great for prostates either. Last year, research from the University of Glasgow found that men who drank more than seven or more cups of tea a day had a 50% higher risk of prostate cancer. And in 2009 a paper in the British Medical Journal showed that drinking very hot tea (70C or more) increased the likelihood of oesophageal cancer.

Still gasping for that cuppa? There is some evidence that tea can be good for you too, with antioxidant properties, so maybe you're not actually drinking enough of the stuff.

The solution

The poor woman in the NEJM study is not alone. There are a few other cases of people who have damaged their bones through too much tea. But she (like those in other studies) was drinking excessive amounts: 100-150 tea bags a day to make 12 cups of tea. A litre of tea can contain up to 9mg of fluoride, which in excess can cause skeletal fluorosis, reducing bone quality and causing pain and stiffening of the ligaments. Other studies show you generally need to drink a gallon a day for three decades to develop this condition.

You also shouldn't worry about the Glasgow study as it wasn't designed to show that drinking tea actually caused prostate cancer. All it proved was an association and people were only asked how much tea they drank at the start of the study, which went on for about 28 years.

The National Cancer Institute in the US concludes that the evidence isn't good enough to say tea either harms or helps our health. However it does seem sensible in the light of the BMJ study to wait for your tea to cool down for a few minutes.

Black tea, which makes up 75% of the world's consumption, may have healthy properties from its plant chemicals called polyphenols, which are antioxidants. Green tea contains more polyphenols but isn't so nice to dunk digestives into.

A review of the evidence in the European Journal of Clinical Nutrition, sponsored by the Tea Council – which, the authors say, had no part in the study – found the research showed more than three cups of black tea a day reduced city of san jose careers disease. It found no evidence of harm "in amounts typically consumed". So as long as you drink less than a gallon of tea a day you should be absolutely fine.

Источник: https://www.theguardian.com/lifeandstyle/2013/apr/01/is-drinking-tea-bad-for-you

Does Tea Lower Blood Pressure?

Hypertension (high blood pressure) means that blood flows through your arteries at higher-than-normal pressure. If left untreated, hypertension can cause complications such as heart disease, heart attack, and stroke.

Hypertension affects nearly half of adults in the United States. An estimated 47% of Americans have systolic blood pressure greater than 130 mmHg or diastolic blood pressure greater than 80 mmHg, or are taking medication for hypertension.

What Is Blood Pressure?

Systolic pressure: The pressure when the ventricles pump blood out of the heart

Diastolic pressure: The pressure between heartbeats when the is tea good for you is filling with blood

Hypertension is typically treated with heart-healthy lifestyle changes such as a healthy low-sodium diet and regular exercise. Medication to reduce blood pressure may also be needed.

Some people also use supplements and other natural remedies to help manage blood pressure. For instance, research suggests that certain teas, such as black tea and green tea, may help lower blood pressure.

This article will look at the science of how tea affects blood pressure, and how best to get the benefits.

What Are Catechins?

All tea comes from the Camellia sinensis plant. The level of leaf fermentation determines the type of tea:

  • White: Unfermented young buds
  • Green: Unfermented fully grown leaves
  • Oolong: Partially fermented
  • Black: Fully fermented
  • Pu-erh: Aged and fully fermented

Herbal teas are not considered true teas, because they are made from plants other than the Camellia sinensis plant.

The leaves of Camellia sinensis contain polyphenols that belong to the catechin family. These catechins are:

  • Epicatechin (EC)
  • Epigallocatechin (EGC)
  • Epicatechin gallate (ECG)
  • Epigallocatechin-3-gallate (EGCG)

These catechins have antioxidant properties. Antioxidants fight free radicals (molecules that cause oxidation from chemical reactions in the body). This helps prevent or delay cell damage and protect against inflammation.

White and green tea contain a higher concentration of catechins than other tea varieties. That’s because the fermentation process used to make black or oolong tea causes the oxidization of catechins.

Benefits of Tea for Blood Pressure

The antioxidants found in tea have also been shown to relax blood vessels, which helps lower blood pressure. One meta-analysis showed regular green and black tea intake was associated with a 3.53 mmHg reduction in systolic blood pressure (SBP) and a 0.99 mmHg reduction in diastolic blood pressure (DBP).

A recent study built upon previous research that showed tea can help lower blood pressure. The researchers were looking for why tea has this effect on blood pressure.

The study found that two specific compounds affect a type of protein (called KCNQ5) found in the smooth muscle that lines blood vessels. Activating this protein causes the blood vessels to relax, creating better blood flow, which lowers blood pressure.

Tea also contains L-theanine, an amino acid that has been shown to lower blood pressure in people under stress, easing anxiety.

It’s worth noting that the ritual of brewing tea, then sitting and enjoying a cup, also has a relaxing effect that can reduce stress—another factor in lowering blood pressure.

Best Teas for Blood Pressure

An analysis showed that while results varied between studies, overall the research supported the blood pressure-lowering effects of tea.

Green Tea

A 2013 meta-analysis of 13 studies showed that, overall, green tea consumption significantly decreased SBP and DBP.

This analysis and the studies within them had some limitations, and the results should be viewed as promising rather than conclusive.

The National Center for Complementary and Integrative Health acknowledges that some research supports green tea’s positive effects on blood pressure, but notes that many of the studies are inconclusive and limited.

Green tea contains caffeine. When looking at labels, be aware that only added caffeine is required to be listed; the naturally occurring caffeine in the green tea may not be noted.

When consumed as a beverage, green tea is believed to be safe at up to eight cups per day.

Green tea should be avoided or consumed with care during pregnancy and breastfeeding. If consumed, limit it to six cups or less per day (no more than about 200 mg of caffeine).

Uncommonly, reports of liver damage have occurred with people who consumed green tea products, mostly in green tea extracts in pill form.

Can Drinking Tea Interfere With Iron Absorption?

Black Tea

Similar to green tea, studies have shown black tea can lower blood pressure. It may also have other heart-protecting properties.

A Swedish study following the health of 74,961 women and men over 10.2 years suggested that consuming four or more cups of black tea per day is associated with a lower risk of stroke.

Black tea also contains caffeine. Limit consumption to eight or fewer cups a day of black tea to stay within a safe level of caffeine.

People who are pregnant or breastfeeding should consume less caffeine, in accordance with their healthcare provider’s recommendations.

What About Oolong?

The benefits of oolong tea on blood pressure have not been specifically studied. However, oolong tea contains the same antioxidants as black and green tea, so it’s likely that oolong has similar benefits. More research is needed to confirm its effect on blood pressure.

Hibiscus

While not a traditional tea, a meta-analysis of studies showed that beverages made with the tropical plant Hibiscus sabdariffa L. were effective in lowering both SBP and DBP. While promising, more studies are needed to confirm this finding.

Hibiscus tea is caffeine free. While generally considered safe, a 2013 study mentions the potential for liver damage at high doses.

Avoid drinking a Hibiscus sabdariffa beverage before taking acetaminophen (Tylenol), as the tea might increase how fast the body gets rid of acetaminophen. More information is needed to determine if this is considered more than a minor concern.

Hibiscus Tea: Benefits, Side Effects, and Preparations

Diagnosis and Treatment

Diagnosis

A healthcare provider makes a diagnosis of hypertension by:

  • Taking a medical history
  • Confirming high blood pressure by taking two or more readings at separate medical appointments
  • Performing blood tests (if necessary)
  • Monitoring your blood pressure by having you wear a blood pressure monitor to record readings over 24 hours or showing you how to take blood pressure readings at home

Treatment

Treatments for hypertension include:

  • Healthy lifestyle changes such as a low-sodium diet, exercise, and stress management
  • Medication

Why Hypertension Develops

A Word From Verywell

High blood pressure can be a frustrating diagnosis to deal with, but the condition is manageable with lifestyle changes, exercise, and medication. Research suggests that drinking tea may be a healthy habit worth adding to your lifestyle to help lower blood pressure. Just enjoy this beverage in moderation to avoid consuming too much caffeine.

Frequently Asked Questions

  • The health benefits of tea are still being studied, but research suggests home remedie for ear infection teas may lower the risk of developing chronic diseases such as cardiovascular diseases, arthritis, and diabetes. These results are not conclusive and should be viewed as promising rather than concrete.

  • Practicing healthy lifestyle habits (such as eating a heart-healthy diet, exercising regularly, limiting alcohol, not smoking, managing stress, and getting enough sleep) can help lower and prevent high blood pressure.

    Some research suggests black, green, and hibiscus tea may help lower blood pressure, but these results are not conclusive and should not be used as a sole treatment unless advised by a healthcare provider.

    These treatments may not be enough to adequately lower blood pressure. Medication may be needed as well.

  • Research suggests that while caffeine may increase blood pressure for a short time after drinking it, it doesn’t increase the risk of high blood pressure, heart disease, or heart attack in typical doses.

    Learn More:Does Caffeine Increase Blood Pressure?

Thanks for your feedback!

Verywell Health uses only high-quality sources, including peer-reviewed studies, to support the facts within our articles. Is tea good for you our editorial process to learn more about how we fact-check and keep our content accurate, reliable, and trustworthy.

  1. National Heart, Lung, and Blood Institute. High blood pressure. Updated May 8, 2020.

  2. Centers for Disease Control and Prevention. Facts about hypertension. Updated September 27, 2021.

  3. Li D, Wang R, Huang J, et al. Effects and mechanisms of tea regulating blood pressure: evidences and promises. Nutrients. 2019;11(5):1115. doi:10.3390/nu11051115

  4. Redford KE, Rognant S, Jepps TA, Abbott GW. KCNQ5 potassium channel activation underlies vasodilation by tea. Cell Physiol Biochem. 2021;55(S3):46-64. doi:10.33594/000000337

  5. National Center for Complementary and Integrative Health. Antioxidants: in depth. Updated November 2013.

  6. Mahdavi-Roshan M, Salari A, Ghorbani Z, Ashouri A. The effects of regular consumption of green or black tea beverage on blood pressure in those with elevated blood pressure or hypertension: a systematic review and meta-analysis. Complement Ther Med. 2020;51:102430. doi:10.1016/j.ctim.2020.102430

  7. Yoto A, Motoki M, Murao S, Yokogoshi H. Effects of L-theanine or caffeine intake on changes in blood pressure under physical and psychological stresses. J Physiol Anthropol. 2012;31(1):28. doi:10.1186/1880-6805-31-28

  8. Peng X, Zhou R, Wang B, et al. Effect of green tea consumption on blood pressure: a meta-analysis of 13 randomized controlled trials. Sci Rep. 2014;4:6251. doi:10.1038/srep06251

  9. National Center for Complementary and Integrative Health. Green tea. Updated October 2020.

  10. Larsson SC, Virtamo J, Wolk A. Black tea consumption and risk of stroke in women and men. Ann Epidemiol. 2013;23(3):157-160. doi:10.1016/j.annepidem.2012.12.006

  11. Serban C, Sahebkar A, Ursoniu S, Andrica F, Banach M. Effect of sour tea (Hibiscus sabdariffa L.) on is tea good for you hypertension: a systematic review and meta-analysis of randomized controlled trials. J Hypertens. 2015;33(6):1119-1127. doi:10.1097/HJH.0000000000000585

  12. Hopkins AL, Lamm MG, Funk JL, Ritenbaugh C. Hibiscus sabdariffa L. in the treatment of hypertension and hyperlipidemia: a comprehensive review of animal and human studies. Fitoterapia. 2013;85:84-94. doi:10.1016/j.fitote.2013.01.003

  13. MedlinePlus. Hibiscus sabdariffa. Updated October 5, 2021.

  14. Khan N, Mukhtar H. Tea polyphenols in promotion of human health. Nutrients. 2018;11(1):39. doi:10.3390/nu11010039

Источник: https://www.verywellhealth.com/is-tea-actually-good-for-your-blood-pressure-5203365

6 best teas for mental and physical health

For most of my life, I’ve considered tea a bland beverage that leaves something to be desired. All of that changed when I moved to Germany, the underrated mecca for tea aficionados. Here, tea shops abound, you can find every herb out there in tea form, and tea is even prescribed by medical doctors and found in pharmacies. It’s no surprise that soon after moving here, I found myself diving deep into the world of underrated oolongs, fruity black tea varietals and decaffeinated botanicals I still struggle to pronounce.

During the last year of quarantine, tea has taken on an even bigger role in my life. I’ve turned to it on a daily basis to break up my day and give me the perfect amount of focus to get through my work day. Noticing positive changes in my life recently moved me to learn more about all the potential health benefits that tea could offer.

For the most up-to-date intel, I spoke to three tea educators about everything from the most relaxing, “feel-good” teas to the mental health benefits of drinking tea. While these aren’t definitive conclusions, the experts and studies below can give you an idea of some of the potential health benefits of tea.

Related

What are the health benefits of tea?

Studies have shown many potential mental health and physical health benefits of tea. It's true that none of the research can prove causality, but also, none of the studies have shown tea to be harmful (at least not yet), and they are numerous enough that many experts agree the benefits are worth continuing to explore.

You can’t jose alfredo gonzalez rodriguez about the health benefits of tea without mentioning L-theanine, an amino acid found in tea and some mushrooms. (A 2016 study published in “Pharmacognosy Magazine” tested nearly 40 commercial teas and found L-theanine in all of them, minus pu-erh tea.) All teas can be “good” for you, but teas that contain this amino acid are especially beneficial because they have been shown is tea good for you keep you calm and de-stress you, all while helping you concentrate. While more research needs to be done to definitively back up these claims, preliminary studies show this to be true: One smaller 2007 study published in “Biological Psychology,” for instance, found that subjects who drank theanine-rich matcha showed lower anxiety levels than those who were given a placebo.

Beyond L-theanine, tea continues to be researched as a rich source of antioxidants called flavonoids, mostly found in green and black tea. Research has found that these flavonoids might reduce the risk of cardiovascular disease and stroke and could be related to cardiovascular mortality risk. In one meta-analysis published in “Advances in Nutrition,” just a 1-cup increase in daily tea consumption was associated with a 2 percent decrease in any cardiovascular event. However, more research needs to be done to demonstrate any proven benefits.

For caffeinated tea drinkers, there are even more benefits to be found in tea. Caffeine has often been cited as a driver of physical health benefits, including a lowered risk for type 2 diabetes, cardiovascular disease and colon cancer, though more research needs to be done to prove any definitive links. There are also some potential mental health benefits: In a study of more than 50,000 women, those who drank at least four cups of caffeinated coffee a day saw a 20 percent reduced risk of depression compared to those who drank almost no coffee.

Related

The best teas for mental health

According to Jane Pettigrew, co-founder and director of studies for the UK Tea Academy, teas high in L-theanine have a “brothy, umami” flavor. Gyokuro tea, for example, is one of the highest quality teas you can buy from Japan and it has this savory-sweet character.

Some — but not all — senchas (a type of green tea high in L-theanine) are partially shaded to increase their production of L-theanine. Ayame Kabuse is one such sencha variety that’ll deliver refreshing, umami flavors reminiscent of Gyokuro.

For a more accessible tea high in L-theanine, look to matcha, the aforementioned green tea with a high concentration of the amino acid. Produced by grinding the whole shaded green tea leaf down into a powder form and then whisking that powder in a bowl with hot water, matcha has recently become a more popular tea flavor.

Pettigrew admitted that the taste is “intense,” though, and that adding it to a latte, or blending half a teaspoon of it with almond or oat milk, a banana and a bit of honey is a perfectly acceptable way to tone the flavor down. To find the best matcha, Pettigrew said that the tea should be “bright emerald green and have a certain sweetness,” but that it should always have a plant-esque flavor profile. The Soukou Matcha is one tea that checks every box.

Related

Another type of tea that many experts recommended — and that I’ve personally fervently embraced as well — is oolong. Oolong teas are lightly caffeinated, and their mild flavors can range from light and floral to roasted with a smokey undertone. Another reason oolong teas can be great for a mindful, meditative tea ritual is because their loose leaves are ball- or twisty-shaped and therefore lend themselves to an amazing visual experience when steeped in hot water.

“Besides their flavor, I love how oolong tea leaves unfurl, open up, kind of demand your attention and allow you to go into a contemplative mode,” said tea educator and consultant Anna Ye. Try out Nantou Four Seasons, an oolong that’s milky, floral and has beautiful unfurling leaves. Because oolong tea leaves are so dense, Ye said, they’re also great to drink without a strainer in an unfussy bowl or small tea cup.

Emphasizing the mental health benefits of drinking tea, Diana Zheng, co-founder of Three Gems Tea, says, “There’re definitely compounds in tea that have physiological effects on the body, but I like to focus more on the intentionality of brewing tea and making it a ritual: Enjoying the smells, the taste, the texture, the feel of the cup, looking at the leaves after they’ve unfurled. It’s an everyday luxury and a nice way to treat yourself.”

Related

Mental health benefits of decaffeinated teas

We can’t talk about tea without at least dipping into the world of decaffeinated herbal teas. Here, taste, smell and look are at an even higher premium. And while you won’t enjoy the health benefits of caffeine with a decaffeinated tea, these can be good for people with high anxiety levels, as studies have shown that large amounts of caffeine can trigger anxiety and depression in people with mental health disorders.

To beat my afternoon slump, I usually reach for a turmeric chai, which I sweeten up with a few drops of oat milk. It’s just spiced enough to wake me up, but won’t disrupt my sleep schedule at night.

Lemon Verbena is another one that both Ye and Zheng recommended. “It blows my mind that it’s from a single plant because there are so many flavors packed into this one leaf,” said Zheng. “It has the lemon flavor and the tang, but also a floralness and sweetness. What is the routing number for first interstate bank also a lingering spice, almost like a black pepper. Overall, it feels really refreshing.”

Though herbal infusions aren’t technically “teas” since they’re not derived from tea leaves — and we can’t prescribe tea’s many health benefits to them — many are known for other good-for-you benefits. For example, peppermint tea is associated with lowered IBS symptoms, chamomile is associated with sedative properties and rooibos is associated with a high level of antioxidants. Just like with tea, however, many of these studies aren’t conducted with the rigor of randomized control trials, so it’s impossible to specifically prescribe teas for any of these ailments.

Related

Which to Buy: loose leaf teas or bagged teas?

As a lightweight and small item, tea is one of the best items to buy online. But one of the bigger questions people wrestle with is whether to buy loose leaf or bagged teas. Because paper tea bags conceal their contents, they’re often made with lower quality tea leaves. For this reason, most experts recommend going for loose leaf tea. But if you love tea bags for their convenience, Pettigrew suggested going for pyramid tea bags, which are made out of a biodegradable material and are often filled with large tea leaves that unfurl just as they do with loose leaf tea servings. This way, you can have your tea and drink it too.

Related

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Michelle No

Michelle No is a former freelancer for Select on NBC News. She is a culture journalist based in Berlin. Her work has been featured in the New York Times, BuzzFeed, Apartment Therapy, and Thrillist, among others.

Источник: https://www.nbcnews.com/select/shopping/best-health-teas-ncna1269391

There's no denying that coffee is the most popular beverage to enjoy first thing in the morning, but it's hard to ignore that more and more people have been making the switch to green tea to get their daily fix of caffeine. Regardless of when or how it's enjoyed, there are a few health benefits that give green tea a supercharged edge over many other hot beverages (including other types of tea).

To understand why, we first have to look at where certain teas come from. All varieties of tea are first brewed from the dried leaves of the Camellia Sinesis bush and can be divided into four different categories based on how oxidized they are. White tea is made from unoxidized buds, whereas oolong tea stems from particularly oxidized leaves, and black tea is made when completely oxidized leaves are steeped in hot water. Green tea, on the other hand, is made with unoxidized tea leaves — all of these varieties contain antioxidants, chiefly flavonoids, a group of plant-based chemicals that have been shown to reduce coronary inflammation. How you choose to brew your is tea good for you — and the kind of tea you've chosen to brew — can play a role in its final antioxidant counts. Green tea, however, has been shown to naturally contain the highest amount of flavonoids of the four varieties, according to a 2005 scholarly review published in the Journal of Food Composition and Analysis.

But some of the hype around this herbal superstar of a daily pick-me-up has led to confusion about its immediate health benefits. Here, we're confirming all the reasons why you should be drinking green tea — and debunking the most common myths about green tea's best attributes.

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Fact: Green tea can help you lose weight.

If you're a regular soda, juice, energy-drink, or sweetened-coffee-and-tea drinker and you switch to unsweetened green tea, you could see some results in the long run. That's because the number one source of added sugar (and therefore, added calories) in the American diet is from sugar-sweetened beverages, so opting for a calorie-free alternative is always best. But if you're already sipping on water flavored with fresh fruit, sparkling water, unsweetened coffee and tea, or the occasional diet beverage, then chances are you'll have to do more than simply switch up your hydration habits to lose weight for the long-term. Bummer, we know!

Fact: Compounds in green tea may reduce risk of cancers.

The antioxidant-compounds found in green tea have certainly been touted with cancer-fighting properties — and current research supports this in full. A pair of studies conducted in 2002 discovered that polyphenols found in green tea may suppress certain tumor cells across the body; more recently, a 2018 review carolina realty of chapel hill published research over the last decade found that those who regularly consumed green tea marginally lowered their risk of developing breast cancer.

There's a catch, though. Plant-based diets are often always linked to a reduced risk of cancer — plus other chronic diseases, such as heart disease and diabetes. Among the myriad of benefits southern first bank login with packing on the veggies (and drinking unsweetened tea), plants are chock-full of polyphenolic compounds, a type of antioxidant that reduces the risk of chronic disease by improving cellular function of tissues, leaving less "room" for cancer cells to develop. So if you're not a green tea is tea good for you, never fear! Simply loading up on veggie- and fruit-based meals and snacks — even if you choose to enjoy coffee daily — can help to reduce chronic disease risk when consumed consistently.

Getty Images

Fact: Green tea may reduce heart disease risk.

In population studies, people who frequently drink unsweetened green tea are less likely to develop cardiovascular disease later in life; this 2013 review published in the American Journal of Clinical Nutrition tied the benefit to tea's flavonoids. That said, many of these population studies are specific to region and genetics. For example: Studies conducted in Taiwan and Japan, where green tea is consumed regularly and consistently, may have a genetic predisposition to the positive effects of green tea. Regardless, population studies conducted in the U.S. and abroad consistently link drinking unsweetened versions of any type of tea as an alternative to sugary beverages with improved heart-health and reduced risk of developing other types of chronic diseases — especially ones related to obesity — so keep on chugging.

Fact: Green tea can help lower blood sugar.

If you're drinking unsweetened versions of green tea it's certainly a blood sugar-lowering beverage. But lately, I'm seeing green tea as an ingredient used in everything from sugary juices, "tonics" and "elixirs" to frozen yogurt, pasta sauce, and dressings, which can be loaded with sugar. Be sure to scan the nutrients label on any packaged products to ensure you're not accidentally guzzling tons of added sugars every day.

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Fact: Green tea is different from matcha.

Think of matcha as being in the green tea "family" that undergoes a slightly different farming process, and is consumed in its powder-form (instead of whole-leaf form) which makes it a more concentrated version (and therefore, a higher caffeine/theanine version!) than green tea. We're big fans of matcha and huge advocates for making it easier to drink unsweetened beverages on the go.

Fact: Green tea is caffeine-free.

It's not always true, but some versions are. Many people who find coffee-drinking to be a bit too much of a jolt may tolerate the lower caffeine content of tea much better (one cup of home-brewed coffee is about 100mg of caffeine; tea is between 25-50mg, depending on the is tea good for you and brew's strength). If you're tea-totaling before you hit the hay, look for versions that are clearly labeled "caffeine-free" on the front of the pack, or check Nutrition Facts labels closely for 0mg caffeine per serving.

All of that being said: The USDA Dietary Guidelines for Americans suggest caffeinating at around 300-400mg per day from coffee and tea to reduce risk of cognitive decline, boost memory, and improve energy — so for those who aren't as sensitive to the jolt, don't be afraid to drink up.

Fact: Green tea can be calming.

It may depend on your definition of "calm." Green tea is a source of the amino acid of the amino acid L-theanine, a compound that's linked to alertness and mood-enhancement. Research has also linked l-theanine consumption to reduced anxiety and improved focus — but if you're drinking caffeine-containing green tea (and you're sensitive to caffeine), you may not find guzzling the green stuff to be all that soothing. This one's highly based on personal tolerance, so if you know you're easily ruffled by caffeine of your favorite beverages, you may want to avoid the caffeinated varieties of all tea and coffee beverages in the afternoon through bedtime.

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Myth: Green tea boosts metabolism.

While a few small-scale studies have linked an increased metabolic rate to drinking green tea (when sipping about four caffeinated cups per day), the only truly variable factor in your basal metabolic rate (BMR) is increasing your lean body mass, a.k.a. building muscle. That's why strength training is key to keeping your metabolism up for the long-term, and crucial to bone, muscle, and immune function, which ultimately helps to support metabolism over time. The only real, tried-and-true way drinking green tea will help boost your metabolism? By helping you wake up to get your tush to the gym.

Myth: Green tea is anti-aging.

Green tea's antioxidants also do their "dirty work" by scavenging for free-radicals in the cells of your body, protecting and preventing damage to tissues (like skin!). But just as no single food or beverage can cure cancer, so too can green tea not behave like Botox in a bottle. According to the experts in the Good Housekeeping Institute's Health, Beauty and Environmental Labs: "Green tea catechins may help protect skin from UV damage, but more research needs to be done with longer studies to show the benefits of topically applying green tea extract."

Myth: Drinking green tea burns belly fat immediately.

Any time you change your diet to start a new plan in which you burn more energy than you consume, you'll likely "burn" off some additional fat mass (for many of us, that's stored around the tummy area, so you may notice a little tightening-up!). That said, not one single food or drink can "spot train" any body parts! Keep in mind that green tea beverages (like sugary lattes, sparkling green teas with added sugar, and green tea "flavored" drinks) are often still sugary beverages, which has been linked to weight gain over time (specifically, abdominal fat), so just make sure that you're choosing versions with zero grams of sugar and zero calories per serving.

Jaclyn London, MS, RD, CDNA registered dietitian with a Bachelor of Arts degree from Northwestern University and a Master of Science degree in Clinical Nutrition from New York University, Jaclyn “Jackie” London handled all of Good Housekeeping’s nutrition-related content, testing, and evaluation from 2014 to 2019.

Zee KrsticAssociate Health EditorZee Krstic is a health editor for GoodHousekeeping.com, where he covers the latest in health and nutrition news, decodes diet and fitness trends, and reviews the best products in the wellness aisle.

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Источник: https://www.goodhousekeeping.com/health/diet-nutrition/a43325/green-tea-benefits/

Should you drink tea or coffee? Coffee gives you a quicker buzz, but tea provides more sustained energy

  • Tea and coffee are both good sources of caffeine and antioxidants. 
  • Coffee contains twice as much caffeine as tea, and can give you a more immediate energy boost. 
  • Tea contains L-theanine, a chemical that metabolizes caffeine slowly, giving you sustained energy. 
  • Visit Insider's Health Reference library for more advice.

Coffee and tea are two of the most common drinks in the world. Both contain caffeine, antioxidants, and can help you feel energized, making it difficult to decide between the two. 

Here is everything you need to know about the differences and similarities between coffee and tea and which is better for your health. 

Coffee has more caffeine 

Coffee and tea both contain caffeine, a stimulant that can make you feel awake and energized. 

It may also ward off disease. A large 2015 study found people who consume a moderate amount of caffeine have a lower risk for type 2 diabetes than people who do not consume any. They were also less likely to develop certain cardiovascular diseases, neurodegenerative diseases — including Alzheimer's and Parkinson's — and cancers like colon cancer, uterine cancer, and liver cancer. 

Important: One cup of coffee typically contains 80 to 100 mg of caffeine, according to Christopher Gardner, PhD, the director of nutrition studies at the Stanford Prevention Research Center. One cup of tea, by contrast, only contains 30 to 50 mg of caffeine. 

"Generally speaking, coffee has two to three times more caffeine compared to a similar-sized black tea," says Matthew Chow, MD, an assistant clinical professor of neurology at the University of California Davis School of Medicine. 

However, the exact ratio depends on several factors, including: 

  • The type of tea
  • Amount of tea used to brew a cup 
  • The temperature of the water
  • Length of time the tea is left to steep 
Related
5 benefits of green tea and how it can help your memory, skin, and bones

Black tea, for example, contains 48 milligrams of caffeine, while green tea only contains 29. Pure herbal teas such as peppermint tea and chamomile tea contain no caffeine at all. 

However, it's important you don't consume too much caffeine, which the FDA defines as more than four to five cups of coffee a day. That's because in excess, caffeine can cause: 

  • Nausea
  • Diarrhea
  • Insomnia
  • Anxiety
  • Elevated heart rate
  • In extreme cases, it can cause epileptic seizures

Note: Everyone's caffeine tolerance is different, so it's important to note how your body reacts to it and adjust accordingly. 

Tea provides more sustained energy and attention

Since coffee contains more caffeine than tea, it will give you a bigger buzz. Tea, however, appears to provide a more sustained boost in energy than coffee. 

That's because tea, unlike coffee, contains L-theanine, a chemical that metabolizes caffeine over a longer period of time. In fact, a small 2008 study found participants who consumed a combination of L-theanine and caffeine did better on an attention test than those who consumed caffeine alone. The study concluded that a combination of the two improved both cognitive performance and attention.

Both green tea and black tea contain L-theanine, but green tea has slightly more, at about 6.56 mg, compared to black tea's 5.13 mg. 

Coffee contains more antioxidants 

Related
Why antioxidants are so important to your overall health

Both coffee and tea contain antioxidants —  chemical compounds that may reduce your risk of certain conditions like cancer or diabetes. 

"Coffee has more antioxidants generally than tea preparations," says Chow.

In fact, a 2013 study found that coffee contained more antioxidants than tea, hot chocolate, and red wine.

Common antioxidants in coffee include chlorogenic, ferulic, caffeic, and n-coumaric acids. Some experts even consider caffeine to be an antioxidant. A major component of green tea called catechin is also considered an antioxidant with anti-inflammatory properties. 

Consuming antioxidants in the form of coffee or tea could "potentially prevent oxidative degradation," a chemical reaction that can cause cellular damage, says Gardner. "If you do that, potentially you could prevent or treat chronic degenerative diseases," such as stroke, cancer, diabetes, and heart disease, he says. 

Just remember to drink coffee and tea in moderation for antioxidant benefits, as having more than four or five cups per day can provide health risks from the amount of caffeine. 

Insider's takeaway 

 "There is no clear winner between tea and coffee," says Chow. In terms of your health, the choice basically comes down to which effects you are looking for.

If you'd like a quick buzz, coffee's high caffeine content will get you there. However, if you are more sensitive to caffeine, you may prefer tea due to its lower caffeine content and L-theanine levels which means you get a longer, more stable energy boost.

Источник: https://www.insider.com/tea-vs-coffee

Teas You Should Be Drinking And Teas You Shouldn't

By Albert Lakey AND Kitty Jay/July 26, 2017 1:19 pm EST/Updated: May 11, 2018 2:50 pm EST

Once upon a time, tea was considered something special. So special, in fact, that entire blocks of the day were set aside for partaking in the warm, comforting beverage — always prepared with care and only using the finest of ingredients. Times, however, have changed. These days, pretty much any beverage made by throwing some herbs into water gets described as "tea." You can buy it at any coffee shop, corner store or gas station. but just because you can buy it doesn't necessarily mean that you should

If you believe everything you're told, you might be convinced that tea is a magic elixir, offering health and vitality to all who partake. And while with good tea, that reputation is almost entirely deserved, it definitely doesn't apply to some pretenders to the throne. To clear up the confusion, here are some teas you should be drinking, and a few you shouldn't.

Drink black tea

You should be drinking black tea. Not only is it delicious in its many varieties, it offers many health advantages, from weight loss to battling diseases is tea good for you cancer, diabetes, and many more. However, like many things in this world, the devil is in the dosage. The issue with black tea is in its (tiny) fluoride content, which ordinarily wouldn't be enough to cause you harm, even if you drink a dozen cups a day.

However, if you drink as much tea as one 47-year-old woman did, you might end up in trouble. She drank a gallon of tea a day for almost two decades, brewing it with between 100 and 150 tea bags each time. It is estimated that she was consuming in excess of 20 milligrams of fluoride per day (way, way above the recommended dose), and after 17 years of this, her bones were like glass. She ended up in the hospital suffering severe pain from brittle bones, and had to have all her teeth removed. Other than that, though, she was probably super-duper healthy.

Don't drink detox teas

You shouldn't be drinking is tea good for you teas. Apart from the whole "detox" industry being basically one big scam, there is an ingredient in most detox teas that you should only really be taking in certain circumstances. Senna leaf is known to irritate the lining of the bowels, which has a laxative effect. This is fine if you're constipated, or a surgeon wants to operate on your digestive system and doesn't feel like working around last night's dinner. However, if you consume it regularly in teas, it will not be fine.

In the short term, these teas will mostly just "detox" your bowel, which, admittedly, will probably leave you feeling a bit less bloated. Unfortunately, it will also dehydrate you and "detox" out a bunch of important stuff, like electrolytes and healthy nutrients, which do more good inside you, especially if you intend to have a nice, long, pain-free life.

Drink oolong tea

Falling somewhere in between black tea, which is made with fully oxidized tea leaves, and green or white tea, which are both made with non-oxidized tea leaves, we have oolong tea. Oolong tea is made by partially oxidizing tea leaves in the sun, then twisting the strands of tea leaves to develop oolong's distinctive flavor. Oolong teas from different regions of the world can vary widely in percent of oxidation, meaning some oolong teas will have much more caffeine than others.

Unique not only in flavor, oolong tea also enjoys many of the health benefits of both black and green tea. Oolong tea is said to help with blood sugar control, heart health, brain function, and metabolism, as well as protect against some forms of cancer. Oolong tea is rich in minerals like manganese, and contains a host of tea polyphenols, which act as antioxidants. Oolong is also hailed for containing the amino acid theanine, which acts as a stress-reducer in the body.

Don't drink most herbal teas

Aside from ginger, hibiscus, and peppermint—which have clinically recognized health benefits for the consumer—steer clear of basically any herbal teas. Any positive effects perceived after drinking any other herbal infusion may be, at best, a placebo effect (or possibly leftover good feelings from the chocolate biscuit). Until more studies have been done, the only information about most herbal teas comes from largely non-scientific or traditional medical sources. While there certainly could be merit in ancient tea-based remedies, without studies to back them up, you might as well fall back on a traditional New York prescription for your problems. We refer, of course, to the Long Island iced tea—because you definitely won't be feeling much pain after a couple of those.

Drink green tea

Green tea has a ton of fans. So many, in fact, that Authority Nutrition declared it the "healthiest beverage on the planet" — a pretty bold statement, likely due to green tea's high concentrations of epigallocatechin gallate (EGCG) which is loaded with a host of medicinal properties. Green tea is credited with boosting brain function, enhancing weight loss, and staving off cardiovascular disease and cancer. What else does green tea fight? Death, apparently. A study of elderly Japanese found that those who regularly imbibed the hot green libation were 76 percent less likely to die during the 6-year study. Enjoy green tea by the bag, prepared with loose leaves, or as matcha — a premium green tea made into a powder and believed to contain the highest health benefits of all green tea.

Don't drink comfrey tea

For those of us who are prone to injury, a cup of tea made from comfrey might sound like a good idea. After all, comfrey is said to promote the healing of wounds, bruises, and even broken bones. It's also claimed to help with digestive issues, though it isn't a friend to every part of your body. Comfrey contains pyrrolizidine alkaloids which, when metabolized and consumed in sufficient quantities, can cause severe damage to the liver. The risk varies depending upon when the plant was harvested and which part of the comfrey plant is used, but because of the risk, its sale is banned in the US and many other countries for anything other than topical applications (and even then, there's a danger of buildup).

Bags of dried leaves are still available online, however, and although they should only be used to create creams and ointments, it is totally possible to throw them in some hot water and make a lovely cup of steaming liver failure.

Drink white tea

Like most tea we drink, white tea also comes from the Camellia sinensis leaf. It has a pleasantly mild taste with a natural sweetness, which makes it preferable for some people who can't get past the bitterness of green tea. The difference in white tea lies in how the leaf is treated, or rather, not treated. White tea comes from the youngest buds of the plant that are covered in fine silver hairs giving the buds a white, fuzzy appearance. The buds are plucked and steamed to prevent oxidation, resulting in a tea that is high in body-friendly catechins that are believed to help fight cancer, diabetes, bacterial infections, and even aging. So you can feel pretty darn good about downing a few cups per day. If it's really doing work on the aging front, make sure you grab your ID before you hit the bar.

Don't drink tea that has steeped too long

If you're a regular tea drinker, you've no doubt prepared and consumed your cup of tea the way many people do — by pouring hot water over a tea bag into a cup, and allowing the tea bag to steep there the entire time you enjoy your tea. Perhaps you even think this method allows the water to extract even more of all of that tea goodness from the tea bag. Unfortunately, this is the opposite of what you should do when preparing tea.

Dr. Gerry Schwarfenberg of the University of Alberta says we should actually keep the brew time of teas to under three minutes, especially if the tea is from a region known for high levels of lead and aluminum, like China. Not only will a shorter brew time lessen the leaching of heavy metals into your cup, it will also decrease the amount of fluoride you possibly consume while enjoying your brew. Schwarfenberg also recommends drinking your tea from a glass mug, instead of china, which could also contain lead in its glaze.

Drink ginger tea

Ginger has long been used in traditional medicine to treat nausea and other digestive issues, which makes it an excellent choice for use in teas. It is especially useful for pregnant women experiencing morning sickness, since it's safe to use during pregnancy and will help with menstrual pain.

People who exercise might also find benefit from a cup of ginger tea, since studies have shown it can reduce exercise-related muscle pain, as well as inflammation. It also happens to taste pretty good, which is more than can be said for some "teas," real or otherwise.

Don't drink lemon flavored tea

No, you don't have to avoid squeezing some fresh lemon in your tea, but you should be wary of those tea bags that are labeled as "lemon flavored." The tea leaves used in these preparations are usually of low quality, and has "higher amounts of noxious metal than tea infusions made from whole leaves," according to Magdalena Jeszka-Skowron, PhD, of the Poznan University of Technology in Poland.

Powdered and liquid iced tea products are also suspect, with studies indicating heightened fluoride and acid content. Jeszka-Skowron recommends adding fresh lemon to better-quality, whole leaf teas. Even then, she advises that you should wait until you have removed your tea bag or leaves from your brew before adding the lemon, which could alter the pH and extract heavy metals from the tea leaves.

Drink pu-erh tea

True pu-erh tea hails from the Yunnan province of China, and has a very devoted legion of drinkers. To make pu-erh tea, the tea leaves are only partially oxidized, then left with microbes which, over time, ferment the tea. Pu-erh may be aged for a just a few years for "young raw" pu-erh, or fermented for many decades to produce the prized "aged raw" pu-erh teas, which can fetch thousands of dollars and more in the marketplace.

Pu-erh is highly touted as a weight loss remedy in Asia, and there is some science to back up the claims. While most studies are on animals, a study of 36, pre-obese adults in Japan showed that pu-erh tea contributed to a significant loss of visceral fat and reduction of waist circumference in the test subjects. Pu-erh is also useful in the treatment of high cholesterol, due to the naturally occurring chemical it contains, lovastatin, which is the same chemical found in cholesterol medications.

Don't drink kava kava

This ceremonial tea from the South Pacific is one that has a ton of potential for misuse. A known anti-anxiety remedy, kava kava has sedative qualities that can produce a drunken stupor in users who overindulge. It has been outright banned in countries like Australia and Poland, and its use has been linked to cases of liver disease, though the quality of the kava kava used in those cases is likely the culprit. While still legal in the U.S., you should be fairly warned: it can produce some pretty unpleasant side effects when mixed with alcohol or prescription meds. If that wasn't enough, get this — overuse of kava kava can cause a scaly skin rash that only goes away once you stop partaking. Doesn't sound too relaxing to me!

Drink hibiscus tea

In many countries, drinking tea is a ritual (sometimes involving tasty biscuits) that generally leaves you feeling fairly relaxed after. However, if your stress issues are more serious, a diversion from the traditional high-tea brew might have a greater benefit for your health. Consider hibiscus tea, for example. While it isn't made from the leaves of the camellia sinensis plant, a recent study showed that regular consumption of hibiscus tea was linked to a noticeable drop in blood pressure, in a group of patients suffering from elevated stresses and pressures. The study didn't consider the effect of consuming tasty snacks with the tea, but since a chocolate biscuit never made anyone feel worse, it was probably just inferred.

And now for the no-no teas.

Don't drink cheap tea

Regardless of your preferred choice of tea, quality matters. Though one of the healthiest drinks to grab, certain teas come with their fair share of health risks. The Journal of Toxicology found in 2013 that over 70 percent of the 30 teas tested contained potentially unsafe levels of lead, while 20 percent contained unsafe levels of aluminum. A separate study also found that 36 of 44 teas tested had unacceptable levels of pyrrolizidine alkaloids (a toxin that grows on plants and is linked to liver damage, that is easily spread from a mother to a fetus or breastfeeding child). Another study found elevated fluoride content in some teas. While fluoride is good for your teeth in low doses, like those in water fluoridation programs. But the amount found in these teas was highly concentrated and could actually be detrimental to teeth, bones, and joints. Experts recommend avoiding teas that are grown in China, Sri Lanka, and India, which are known to have more contaminated soil.

Источник: https://www.mashed.com/22548/3-teas-drinking-3-teas-shouldnt/

It's no secret that drinking tea is good for you. Tea has been an integral part of traditional medicine and is revered as a cure-all in many Asian countries. The Chinese and Japanese have consumed this tea to improve health for centuries. It's even promoted in Western medicine as a way to treat symptoms of the cold and flu.

The benefits of drinking tea go far beyond simply feeling better when you're sick. Drinking tea can help protect brain health, improve heart health, and may even prevent certain types of cancer. Here, we'll show you all the healthy benefits of drinking tea so you can settle in with your favorite mug and sip to your health.

What is Tea?

Tea is one of the most frequently consumed beverages in the world. There are two main categories of tea: true teas and herbal teas. In addition, there are flavored teas that combine a true tea base with herbal infusions.

True Tea

True teas are made using the leaves of the tea plant known as Camellia sinensis. These teas include the skeleton key in hindi download tea, white tea, oolong tea, pu-erh tea, and black tea. While these teas are made using the same leaves of the Camellia sinensis plant, the difference in color and taste arises from the production process.

Green tea and white tea are the true teas, which undergo the least processing. These teas are not oxidized. The leaves are harvested and dried to prevent the chemical reaction that turns the leaves a dark brown or black color. As a result, these teas retain their natural green color and are considered among the healthiest teas.

Black tea is fully oxidized while oolong tea is only partially oxidized. Pu-erh tea is aged and considered a post-oxidized tea. These true teas offer a range of health benefits, but are considered slightly inferior to green tea. The caffeine content of true teas varies between the different types and on how the tea was produced.

Herbal Tea

Herbal teas are made by infusing fruits, roots, herbs, leaves, and stems of a variety of plants. Herbal teas are also commonly called herbal tisanes. These teas boas health benefits that differ from true teas since they contain various compounds. Some of the most popular herbal teas include ginger tea, peppermint tea, and chamomile tea. Herbal teas do not contain any caffeine.

Health Benefits of Tea

1. Protects Heart Health

Recent research including animal studies shows that tea drinking may significantly lower the risk for serious heart disease including heart attack and blood clots. Tea contains anti-inflammatory properties that help to soothe tissue in arteries. This helps to minimize the risk of inflammation that can restrict blood circulation and cause clotting (1).

Tea consumption may also help decrease high blood pressure and lower cholesterol. One apple contact info usa found that people who drank four cups or more of green tea each day had a 32 percent decreased risk of heart attack and significantly lower levels of bad LDL cholesterol.

2. Boosts Energy

Green tea contains a small amount of caffeine that can help increase energy. The low caffeine amounts make green tea a good choice for people who are looking to cut back on their caffeine intake.

Green tea's energy-boosting properties are further driven by an amino acid known as L-theanine. This amino acid slows the absorption of caffeine. As a result, the energy boost from green tea is longer-lasting and more steady than that from a cup of coffee. You'll get the increased focus and energy without the jittery side effects or the crash when the caffeine wears off. L-theanine also increase alpha waves in the brain, helping to increase focus while at the same time offering calming and relaxing effects.

3. May Aid Weight Loss

Green tea may help accelerate weight loss thanks to its chemical composition. Green tea contains amino acids that signal the body to burn stored fat. The caffeine in green tea also helps boost energy so you can power through your workouts more efficiently (2).

Studies have shown that these benefits are more pronounced in individuals of Asian decent. People of other ethnicities may also see improved weight loss numbers, but to a lower extent than others.  

Green tea extract is a popular weight loss supplement that is promoted to accelerate weight loss. Green tea extract is simply a concentrated form of green tea leaves. By drinking green tea, you can get the same weight loss benefits as taking a supplement.

Green tea also helps to keep you hydrated and may satisfy a sweet tooth. Green tea is a calorie-free drink so you can drink as many cups as you'd like without feeling guilty. Replacing sugary sodas and sports drinks with green tea can cut calories and help you reach your fitness goals sooner.

4. Supports Mental Health

Regular tea consumption has been linked to lower risk of neurological disease and decreased stress levels. Green tea consumption has also shown promise in preventing cognitive decline associated with brain disease such as Parkinson's disease and Alzheimer's. Tea offers natural calming effects that can reduce stress and help you unwind after a tough day.

Tea contains antioxidants that work to prevent oxidative stress, which is tea good for you damage healthy cells. Antioxidants in tea eliminate free radicals caused by pollution and other factors, which can cause oxidative stress. Oxidative stress has been linked to dementia and depression. Antioxidants also help cleanse the body of toxins that can cause mental health problems. Tea drinkers have been shown to have lower stress levels and improved overall health with regular consumption.

5. May Regulate Blood Sugar

Drinking tea may help regulate blood sugar levels and prevent or control disease such as type 2 diabetes. Black tea has been shown to reduce blood sugar levels after eating a meal. The effects were demonstrated for up to 120 minutes after meal consumption. Researchers attribute theses health benefits to polyphenols in tea. These polyphenols boast anti-inflammatory and antioxidant powers (3).

6. Aids Digestion

Tea helps streamline digestion and can treat a host of issues ranging from nausea and upset stomach to diarrhea. Ginger tea is an herbal tea that has long been used in China and India to treat upset stomach. The ingredients gingerol and shogaol helps to soothe the stomach lining to prevent vomiting. Peppermint tea also helps to soothe an upset stomach thanks to high levels of antioxidants and menthol.

Tea also contains tannins, which have been shown to reduce intestinal inflammation. This can help soothe stomach cramps and treat irritable bowel syndrome.

Drink to Your Health

The potential health benefits of tea go far beyond simply improving immune system health. Drink tea daily to prevent the onset of neurological decline and help protect heart health.

Whether you prefer drinking green tea or herbal tea bags, you're sure to find a 1st cb bank flavor you love. Explore the varied earthy and vegetal flavors of the true teas or mix it up with the floral, citrus, spicy, and fruity tastes of herbal teas. As long as you're drinking tea. You're sure to reap the health benefits of this delightful elixir.

Sources:

1. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3123419/

2. https://www.ncbi.nlm.nih.gov/pubmed/19597519

3. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3689013/

Источник: https://senchateabar.com/blogs/blog/benefits-of-drinking-tea

Comments

  1. very informative and detailed information to the point. one question if I donot have FD in my bank account but I have FDs in post office, can I use this as a proof of funds. please reply ASAP.

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