Benefits of Green Tea Extract:
1. High in Antioxidants
The health benefits of green tea extract are mostly due to its high antioxidant content.
Antioxidants can help reduce oxidative stress by fighting cell damage caused by free radicals. This cell damage is associated with aging and several diseases.
2. May Promote Heart Health
Fortunately, the antioxidants in green tea extract can decrease inflammation and help reduce blood pressure. They can also inhibit fat absorption in cells, helping reduce blood fat levels (7Trusted Source, 8Trusted Source, 9Trusted Source, 10Trusted Source).
One study had 56 obese people with high blood pressure take 379 mg of green tea extract daily for three months. They showed a significant decrease in blood pressure, compared to the placebo group (9Trusted Source).
Additionally, they experienced significant reductions in blood fat levels, including lower triglycerides and total and LDL cholesterol (9Trusted Source).
Another study in 33 healthy people found that taking 250 mg of green tea extract daily for eight weeks reduced total cholesterol by 3.9% and LDL cholesterol by 4.5%.
3. Good For The Brain
The antioxidants in green tea extract, especially EGCG, have been shown to protect brain cells from oxidative stress (11Trusted Source).
It’s also been shown to help memory by enhancing the connection between different parts of the brain.
One study had 12 people drink a soft drink containing 27.5 grams of green tea extract or a placebo. Then, while the participants worked on memory tests, brain images were obtained to assess brain function.
The green tea extract group showed an increase in brain function and improved task performance, compared to the placebo group (17Trusted Source).
4. Can Help With Weight Loss
Green tea extract is rich in catechins, and it contains a decent amount of caffeine.
Thermogenesis is the process by which your body burns calories to digest food and produce heat. Green tea has been shown to boost this process by making your body more effective at burning calories, which can lead to weight loss (21Trusted Source).
One study had 14 people take a capsule containing a mixture of caffeine, EGCG from green tea and guarana extract before each meal. It then examined the effect on calorie burning.
It found that the participants burned 179 more calories, on average, in the following 24 hours (20Trusted Source).
Another study showed that 10 healthy men burned 4% more calories during the 24 hours after consuming a green tea extract capsule containing 50 mg of caffeine and 90 mg of EGCG (22Trusted Source).
What’s more, a 12-week study that had 115 overweight women take 856 mg of green tea extract daily observed a 2.4-lb (1.1-kg) weight loss among participants (23Trusted Source).
5. Might Benefit Liver Function
One study gave 80 participants with NAFLD either 500 mg of green tea extract or a placebo daily for 90 days (24Trusted Source).
The green tea extract group showed significant reductions in liver enzyme levels, which is an indication of improved liver health (24Trusted Source).
Similarly, 17 patients with NAFLD took 700 ml of green tea, which contained at least 1 gram of catechins, daily for 12 weeks. They had significant decreases in liver fat content, inflammation and oxidative stress (25Trusted Source).