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This extract is standardized to 90% polyphenols (plant antioxidants) and 50% EGCG (the main green tea catechin). EGCG nudges your body to burn more fat for energy and slightly reduces how much fat and starch you absorb from a meal. It also limits oxidation of LDL particles (the form of cholesterol that can build up in arteries), which partly explains small LDL reductions seen in trials. Caffeine content is low but not zero, and it pairs with EGCG to increase alertness and calorie burn modestly.
Take two vegan capsules daily with food as directed. With-food dosing is important, because taking concentrated green tea extract on an empty stomach has been linked to rare liver irritation. Morning or early afternoon is best to avoid sleep disruption. Separate from iron by 2–4 hours, since catechins can reduce iron absorption. Expect changes in LDL cholesterol or scale trends within 4 to 12 weeks, with day‑one effects on alertness.
Avoid if you have active liver disease, drink heavily, or have had unexplained jumps in ALT or AST (liver enzymes). Stop and get labs if you notice dark urine, abdominal pain, or yellowing of skin or eyes. People with iron deficiency or low Ferritin should either separate dosing strictly from iron or choose another approach. Skip during pregnancy and breastfeeding. Speak with your clinician if you take nadolol, warfarin, or bortezomib, or if you use other stimulants.
It helps a little. Meta-analyses show small extra losses (often 1–3 kg over 12–16 weeks) when paired with calorie control and activity. Effects are larger in people who aren’t habitual caffeine users and smaller if you already drink several cups of tea.
You may feel alertness the first day. For measurable changes in LDL cholesterol, waist, or weight, expect 4–12 weeks. Track LDL cholesterol, fasting glucose or HbA1c, and waist measurements to gauge benefit.
Most extracts are low in caffeine but not caffeine-free. Sensitive users can still notice jitters or sleep disruption. Take in the morning or early afternoon and avoid stacking with coffee or pre-workouts if you’re sensitive.
At typical doses taken with food, it’s generally well tolerated. High doses, especially on an empty stomach, have been linked to rare liver injury. Take with meals and stop if you develop dark urine, abdominal pain, or yellowing; consider checking ALT if using long term.
Not at the same time. Catechins can reduce iron absorption. Separate green tea extract and iron by 2–4 hours, and be cautious if your Ferritin is low or you have iron-deficiency anemia.
It can produce small reductions in LDL cholesterol and fasting glucose over weeks. Think of it as an add-on to diet and exercise, not a replacement for statins or diabetes medications.
If you drink 2–3 cups daily, the added benefit from an extract is usually modest. The extract concentrates EGCG to the equivalent of several cups, which is most useful for people who don’t drink tea regularly.
Yes. It can reduce levels of the beta-blocker nadolol, complicate warfarin management, and interfere with the cancer drug bortezomib. Check with your clinician before use if you take these or stimulant-containing products.