Other

Green tea extract (EGCG)

Other studied for antioxidant support, metabolic support, calm alertness with caffeine. How it works, the dose and timing studied, what it interacts with, and the research behind the grade.

Grade B evidence moderate: promising but smaller or mixed human trials Also known as Epigallocatechin gallate
All compounds
Best for Antioxidant support, Metabolic support, Calm alertness with caffeine
Typical dose 300–500 mg EGCG daily
Timing With food to reduce GI upset and liver risk
Category Other
How it works

What it is and the mechanism

EGCG is a catechin with strong antioxidant activity that may modestly support fat oxidation and metabolic health. Paired with the tea’s caffeine and L-theanine, it supports calm alertness.

Dose and timing

When and how much to take

The dose below reflects the range used in published research. Match the form alongside the milligrams. Set your own wake and bed times to map the timing onto your day.

Timing visualizer

When to take Green tea extract (EGCG)

Dose: 300–500 mg EGCG daily. Set your own wake and bed times to map the guidance onto your day.

12a6a12p6pDAY1 dose
1 pmWith a meal. Take alongside food to aid absorption and reduce stomach upset.

These statements have not been evaluated by the Food and Drug Administration. This information is not intended to diagnose, treat, cure, or prevent any disease.

Before you stack it

Interactions and cautions

Read these before combining this with other supplements or medication. The risk is rarely the headline, it is the interaction you did not check.

Interactions
  • Stimulants, additive caffeine effect
  • Beta-blockers and some drugs, catechins can alter absorption
Cautions
  • High-dose isolated EGCG on an empty stomach has rare liver-toxicity reports
  • Take with food and stay within studied doses
Stacking

What pairs well, and what to keep apart

Derived from shared topics, complementary categories, and the interaction list. Introduce one compound at a time so you can tell what works.

Explore more

Compounds in the same topics

Often considered alongside this one. Each carries its own evidence grade.