Green tea 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 ingredient as an average cup of green tea.
Green tea extract is a great source of antioxidants. These have been credited with a range of health benefits, from promotions heart, liver, and brain health to improving your skin and even reducing the risk of cancer.
Green Tea Extract Benefits
- Antioxidants properties
- Help reduce oxidative stress
- Promote heart health
- Decrease inflammation
- Help reduce blood pressure
- Protect and decrease brain cells
- Decrease the action of heavy metals
- Can help with weight loss
- Improve liver health
- May reduce the risk of cancer
- Improve skin health
- Help prevent loss of skin elasticity, premature aging, and cancer.
- Benefit exercise performance and recovery
- Delay muscle fatigue
- Lower blood sugar
- Promotes antioxidant activity
- Supports mood
- Promotes fat reduction
- May improve cognitive function
- Supports cardiovascular health
The health benefits of green tea consumption are widely known. The specific extract of one of green tea’s catechins, EGCG, has emerged as a supplemental, targeted method of delivery in the modern era.
A catechin is a type of flavanol contained in the leaves of green tea. Approximately 30% of the dry weight of the leaves is flavonols or flavonols. The catechins are constituents of the flavonols. Green tea contains four types of catechins including EGCG (epigallocatechin-3-gallate), EGC (epi-gallocatechin), ECG (epicatechin gallate), and EC (epicatechin).
EGCG is the most abundant catechin in green tea as well as the most potent. The catechins vary in chemical structure and differing amounts of gallic acids.
Animal research suggests that EGCG reduces the oxidants caused by ROS (reactive oxygen species) which are byproducts of oxidation. Studies in mice demonstrated that long term administration increased levels of BDNF (brain-derived neurotrophic factor) and enhanced the memory of aged mice.
EGCG has also demonstrated the ability to promote fat reduction when paired with exercise. EGCG is helpful in maintaining cardiovascular and metabolic health.
EGCG 50% Green Tea Extract Capsules Dosage
EGCG 50% Green Tea Extract Capsules provide 250 mg of a standardized 50% extract from 500 mg dry weight of Camellia sinensis dried leaves per 1 capsule. Suggested use for adults is 1 capsule by mouth daily, or as directed by your healthcare practitioner.
EGCG 50% Green Tea Extract Capsules Side Effects and Toxicity
EGCG supplements are safe in doses of 800-1600 mg; however, the higher doses are associated with more nausea than doses of 400-800 mg.
Although EGCG side effects include gastrointestinal symptoms, nausea associated with taking supplements is not inherently linked to stomach damage at the dosages normally consumed.