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CHINA GREEN TEA 41022 is one of the most commonly consumed teas in the world.
Green tea extract is its concentrated form, with just one capsule containing the same amount of active ingredients as an average cup of green tea.
Like green tea, green tea extract is a great source of antioxidants. These have been credited with a range of health benefits, from promoting heart, liver and brain health to improving your skin and even reducing the risk of cancer (1).
What’s more, many studies have looked at green tea extract’s ability to aid weight loss. In fact, many weight loss products list it as a key ingredient.
This article explores 10 science-based 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 (2Trusted Source).
Polyphenol antioxidants called catechins comprise the majority of green tea extract’s antioxidant content. Among the catechins in green tea, epigallocatechin gallate (EGCG) is the most researched and thought to provide the most health benefits.
Studies have shown that green tea extract increases the antioxidant capacity of the body and protects against oxidative stress (3Trusted Source, 4Trusted Source, 5Trusted Source).
For example, one study had 35 obese people take 870 mg of green tea extract for eight weeks. Their blood antioxidant capacity increased from 1.2 to 2.5 μmol/L, on average (5Trusted Source).
Green tea extract boosts antioxidant capacity, which may help prevent various health problems caused by oxidative stress.
Green tea extract is rich in antioxidants called catechins, which have been shown to increase antioxidant capacity and protect against oxidative stress.
2. May Promote Heart Health
Oxidative stress increases fat buildup in the blood, which promotes inflammation in the arteries and leads to high blood pressure (6Trusted Source, 7Trusted Source).
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% (10Trusted Source).
Given that high blood pressure and high blood fat levels are risk factors for heart diseases, regulating them can promote heart health.
The catechins in green tea may help reduce blood pressure and improve blood fat levels, which promotes heart health.
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).
This protection can help reduce brain damage that could lead to mental decline and brain diseases like Parkinson’s, Alzheimer’s and dementia (12Trusted Source, 13Trusted Source, 14Trusted Source).
Furthermore, green tea extract can decrease the action of heavy metals like iron and copper, both of which can damage brain cells (15Trusted Source, 16Trusted 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).
Green tea extract has been shown to have a positive effect on brain health and memory, and may help protect against brain diseases.