Is there caffeine in green tea extract?

Green tea extract does contain caffeine, which explains why it frequently lands in energy drinks. It's also chock full of antioxidants and plant compounds called catechins that provide the foundation for many boost-your-health claims.

health.clevelandclinic.org - 4 Green Tea Extract Benefits - Cleveland Clinic Health Essentials

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The energy drink staple packs a caffeine punch and delivers other benefits, but caution is recommended Advertising Policy Cleveland Clinic is a non-profit academic medical center. Advertising on our site helps support our mission. We do not endorse non-Cleveland Clinic products or services. Policy Before you open that bottle of jolt juice or swallow a green tea extract supplement, let’s take a closer look with integrative medicine specialist Irina Todorov, MD.

What is green tea extract?

Odds are you’re familiar with green tea, one of the most consumed drinks in the world. Well, green tea extract is basically a concentrated form of the popular tea that’s made from dried green tea leaves. Green tea extract does contain caffeine, which explains why it frequently lands in energy drinks. It’s also chock full of antioxidants and plant compounds called catechins that provide the foundation for many boost-your-health claims. A catechin named epigallocatechin gallate, or EGCG, gets most of the marketing attention. You’ve probably seen its presence hyped on energy drinks and supplements.

Potential benefits of green tea extract

The resume for green tea extract is pretty expansive. Aside from adding some oomph to your system with caffeine, it’s touted for weight loss, lowering your risk of heart disease, skin health and more.

But here’s the question: Does it really do all of that?

Energy boost

The caffeine does pack a definite punch. But Dr. Todorov cautions against relying on energy drinks — responsible for a rising incidence of caffeine toxicity among adolescents — to power through the day. Studies of green tea extract’s effect on athletic performance have been inconclusive, too, so don’t look for it to provide a competitive edge. Quite simply, there are better ways to boost your energy besides unscrewing the top of a bottled drink and guzzling down the contents, says Dr. Todorov. She suggested lifestyle changes such as:

Losing weight

Research on using green tea extract for weight loss has found it can help lower the number on your scale — but don’t expect miracles. One study, for instance, shows any connection to be “modest at best.” “In my opinion, patients can achieve the same amount of weight loss with lifestyle changes, and avoid the risk of side effects and the cost of supplements,” says Dr. Todorov.

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Heart health

Drinking green tea itself is associated with a lower risk of coronary artery disease. So, what happens when you pack all of that goodness into green tea extract? Basically, you see similar results. One study found that taking a 379 milligram (mg) daily dose of green tea extract can help improve blood pressure and cholesterol numbers.

Better skin

Dr. Todorov also gives green tea extract a thumbs up for skin health because of its antioxidant properties. Studies show it can help reduce acne and help aging skin reclaim some of its lost glow.

Can green tea extract be harmful?

Too much caffeine is never a good thing, and it’s possible to push the limits with green tea extract. Excessive caffeine can lead to heart palpitations, high blood pressure, anxiety and other issues. In addition, overdoing it on green tea extract has been linked to liver problems. Part of the issue has to do with federal labeling requirements. Food and drink manufacturers don’t have to list the amounts of green tea extract or EGCG, which means you won’t know how much of it you’re consuming.

A word about bottled green teas

How do bottled green teas rate as a beverage? After all, they contain ECGC. Bottled green teas also contain sugar or other sweeteners, notes Dr. Todorov. Plus, they’re expensive, and — as mentioned — their caffeine and EGCG content is not stated on the label. “It’s better to enjoy a cup of green tea,” she says. “No evidence of toxicity has been reported from drinking green tea, even when you regularly consume two to four cups a day.”

health.clevelandclinic.org - 4 Green Tea Extract Benefits - Cleveland Clinic Health Essentials

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