“Green tea meaningfully boosts your metabolism.”
A catechin review could not reach a firm conclusion on resting metabolism or energy expenditure. Weight-loss trials show, at most, small and variable effects, which do not support a reliable practical metabolism boost.
Green tea catechins have been studied for energy expenditure, but findings are inconsistent. Any average effect on weight is small; drinking tea is not a reliable way to produce substantial weight loss.
Safety note: Green tea contains caffeine. Concentrated extracts differ from the drink and have been linked to liver injury and drug interactions.
Talk to a healthcare professional if: Check with a clinician or pharmacist before taking an extract if you use medicines or have liver disease. Ask about caffeine intake during pregnancy or breastfeeding.
Green tea may have a small metabolic effect, but it is too small to drive meaningful weight loss on its own.
Drink green tea if you enjoy it, not because you expect it to noticeably speed your metabolism.
Similar claims on Metabolism-boosting drinks
Green tea has a real, if small, metabolic effect; lemon water is basically flavored water. Neither is a weight-loss shortcut on its own.