Crestor did better than all of them, but the difference was not statistically significant compared with Lipitor.

FORBES: FDA Warns AstraZeneca On Crestor Marketing

One study of 11 elite cyclists found that those who took quercetin for six months were able to complete a time trial 3.1% faster than before, though the difference compared with a placebo was not significant.

FORBES: Snake Oil in Your Snacks