What is Green Tea Extract?
Green tea is one of the healthiest beverages on the planet. It is loaded with antioxidants and various plant compounds that may benefit your health. Some people even claim that green tea can increase fat burning and help you lose weight. This article examines the evidence surrounding green tea and weight loss.
contains Substances That Can Help You Lose Fat
Tea leaves contain many beneficial compounds.
One of the green tea’s compounds is caffeine. Although a cup of green tea holds much less caffeine (24–40 mg) than a cup of coffee (100–200 mg), it still contains enough to have a mild effect.
However, green tea really shines in its antioxidant content. Studies show that drinking a cup of green tea increases the number of antioxidants in your bloodstream
This healthy beverage is loaded with potent antioxidants called catechins
The most important of these is epigallocatechin gallate (EGCG), a substance that can boost metabolism.
Although one cup of green tea may raise your antioxidant levels, most studies have examined the benefits of green tea extract — which is a concentrated source of catechins.
One way that green tea could aid weight loss is by reducing appetite.
This would theoretically make you consume fewer calories automatically — and without any effort.
However, studies produced conflicting results on the effects of green tea on appetite
Some animal studies suggest that green tea extracts or EGCG supplements can reduce the amount of fat you absorb from foods, but this has not been confirmed in humans
Overall, green tea’s primary effect is to increase calorie expenditure, making you burn more fat — but it doesn’t appear to have any noticeable effect on how much food you end up eating throughout the day.
Your body is constantly burning calories.
Even when you’re sleeping or sitting down, your cells are performing millions of functions that require energy.
Several studies suggest that taking green tea extract or EGCG supplements can make you burn more calories — even at rest.
In most studies, this amounts to about a 3–4% increase, although some show an increase as high as 8%
For a person who burns 2,000 calories per day, 3–4% amounts to an additional 60–80 calories spent per day — similar to what you might expect from a high-protein diet.
In one study in 60 obese individuals, those taking green tea extract lost 7.3 more pounds (3.3 kg) and burned 183 more calories per day after three months than those not taking the extract (17Trusted Source).
However, not all studies show that green tea extract boosts metabolism. The effect may depend on the individual (18Trusted Source).