High Quality Green Tea Catechins Supplements

Catechins, especially EGCG, are polyphenols with antioxidant and anti-inflammatory effects. They've been studied for metabolic health, modest fat oxidation, cardiovascular markers, and longevity pathways.

400–500 mg of EGCG per day in studies, equivalent to 4–5 cups of brewed green tea or one to two extract capsules. Higher doses (above 800 mg) increase risk of liver toxicity and aren't recommended.

Drinking 3–5 cups of green tea daily is the safest way to consume catechins and provides L-theanine and other beneficial compounds. Extracts give a higher EGCG dose without the caffeine load, but carry the rare liver risk. For most people, tea is better; extracts are useful for targeted metabolic goals.

Modestly. Studies show 1–3 lb additional weight loss over 12 weeks at 400 mg+ EGCG daily, with bigger effects when combined with caffeine and exercise. They're not a replacement for diet and movement — more of a small lever on top of those.

Yes. Meta-analyses show LDL drops of about 5–10 mg/dL with 200–400 mg EGCG daily over 8–12 weeks, with similar reductions in total cholesterol. Effects are larger in people with elevated baseline cholesterol.

Catechins can interact with beta-blockers, certain chemotherapy drugs (notably bortezomib), and warfarin (vitamin K content). They also affect iron absorption. Take 2 hours apart from medications and iron supplements.

Drinking moderate green tea (1–2 cups) is fine, but high-dose extracts aren't recommended during pregnancy due to caffeine, potential folate-impairing effects, and the liver toxicity risk. Stick to brewed tea if you want catechin benefits.

People with liver disease, those taking hepatotoxic medications, pregnant or breastfeeding women, anyone on warfarin or beta-blockers without provider guidance, and people with severe anemia (catechins reduce non-heme iron absorption).