Flavonoids & Polyphenols

Evidence: Limited

Resveratrol is a polyphenol from grapes and knotweed. Trials on memory and mood show mixed results, with small improvements on a few measures.

Evidence: Moderate

Cocoa flavanols have the best-studied effect in this formula: a Cochrane review found a small blood pressure reduction. There is no good evidence that...

Evidence: Moderate

Cranberry products have moderate evidence for lowering the risk of recurrent urinary tract infections in some women, children and after bladder proced...

Evidence: Limited

Green coffee bean extract is rich in chlorogenic acids. Small trials suggest a modest effect on body weight, but the evidence base is thin and one hig...