Most doses are standardized against EGCG. Although the amount of EGCG-equivalent varies from one cup of tea to another, depending on many factors (species of tea, length of steeping, time spent oxidizing), one cup of Camellia sinensis green tea contains approximately 50 mg of EGCG-equivalent.

The benefits of green tea catechins on lipid oxidation and related fat-burning pathways are achieved in a dose-dependent manner. Significant effects in people are noted only at high doses, such as 400 to 500 mg of EGCG equivalent per day (most green tea extract supplements are roughly 50% EGCG). The fat-burning effects are highly synergistic and almost dependent on not consuming caffeine habitually.