How Does Green Tea Extract Work?

Green tea has been consumed for thousands of years and is believed to have numerous health benefits. Green tea extract, also known as GTE, is a concentrated form of green tea that contains high amounts of plant compounds called catechins. These catechins are believed to be responsible for many of the health benefits associated with green tea consumption.

So, how does green tea extract work? Let's take a closer look.

Antioxidant Properties.

One of the primary ways in which green tea extract works is through its antioxidant properties. Antioxidants are compounds that neutralize free radicals in the body, which are molecules that can cause damage to cells. Green tea extract contains high levels of a type of catechin called epigallocatechin gallate (EGCG), which is a potent antioxidant.

EGCG has been shown to scavenge free radicals and protect cells against oxidative damage. This is important because oxidative damage is thought to play a role in many chronic diseases, including cancer, heart disease, and Alzheimer's disease.

Metabolism Boosting Properties.

Another way in which green tea extract works is by boosting metabolism. Metabolism is the process by which the body converts food into energy. Green tea extract contains caffeine, which is a natural stimulant that can increase metabolism.

In addition to caffeine, green tea extract also contains catechins that have been shown to increase metabolism. One study found that people who took green tea extract with caffeine burned more calories than those who took caffeine alone.

Fat Burning Properties.

Green tea extract has also been shown to have fat-burning properties. One study found that people who took green tea extract lost more weight than those who took a placebo. The study also found that green tea extract increased the amount of fat that was burned during exercise.

The fat-burning properties of green tea extract are thought to be due to its ability to increase metabolism as well as its antioxidant properties. EGCG has been shown to inhibit an enzyme called catechol-O-methyltransferase (COMT), which breaks down the hormone norepinephrine. When levels of norepinephrine are higher, the body is able to burn more fat.

Cardiovascular Health Benefits.

Green tea extract has also been shown to have cardiovascular health benefits. It can help lower cholesterol levels and improve blood flow. One study found that people who took green tea extract had a significant reduction in their LDL cholesterol (the "bad" cholesterol) levels.

Green tea extract may also help lower blood pressure. One study found that people who took green tea extract had a significant reduction in their systolic blood pressure (the top number) compared to those who took a placebo.

Cancer Fighting Properties.

Finally, green tea extract is believed to have cancer-fighting properties. EGCG, the potent antioxidant found in green tea extract, has been shown to inhibit the growth of cancer cells and even induce apoptosis (programmed cell death) in cancer cells.

One study found that women who drank green tea had a lower risk of developing breast cancer compared to those who didn't drink green tea. Another study found that men who drank green tea had a lower risk of developing prostate cancer.

Conclusion.

Green tea extract is a concentrated form of green tea that contains high amounts of catechins, including the potent antioxidant EGCG. It works through its antioxidant properties, metabolism-boosting properties, fat-burning properties, cardiovascular health benefits, and cancer-fighting properties.

While green tea extract is generally considered safe, it can cause side effects in some people, especially if taken in high doses. It can interact with certain medications, including blood thinners and certain psychiatric medications. As always, it's important to talk to your doctor before starting any new supplement or medication.

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