Green tea Dosage: What Studies Used and What Homes Should

Dose is where herbal advice usually falls apart. Green tea is safe at food levels and questionable above them, and this page draws that line with actual numbers where the research gives them.

The working range

Brew around 80 degrees Celsius for one to three minutes; boiling water scalds the leaf and adds bitterness. Drink after meals, morning or early afternoon.

Stay at food level: a few cups of tea, a spoon of powder, the amounts a cook would use. Concentrated extracts compress several servings into one capsule, so follow the label rather than free-pouring.

What the studies used

Worth knowing before you start: green tea at high doses has been shown to reduce blood levels and, therefore, the effectiveness of the drug nadolol, a beta-blocker used for high blood pressure and heart problems. Green tea extract can reduce blood levels of the cholesterol-lowering drug atorvastatin.

Signs you have overdone it

Green tea is cool in nature. Push a warming herb hard and you feel flushed, restless, dry-mouthed; push a cooling herb and digestion turns sluggish. Either way, the fix is the same: stop, let things settle, restart at half the amount.

Worth knowing: Unlike drugs, dietary supplements are not approved by the U.S. Food and Drug Administration (FDA) before they are sold to the public.

Herbs work best as part of a pattern, not as a solo act. If your symptoms keep coming back, that is the moment to get a proper TCM diagnosis rather than to keep self-prescribing.