BioStacks
Hydroxytyrosol
SupplementModerate Evidence
Dosing Guide
RDA
None
Effective
5–25 mg
Upper Limit
None
EFSA health claim requires minimum 5 mg/day hydroxytyrosol or its derivatives from olive products. Studies use 5–25 mg/day.
About Hydroxytyrosol
The most potent antioxidant polyphenol in olives, with one of the highest ORAC values of any natural compound. EFSA approved a health claim (EU 432/2012) that 5 mg/day from olive products protects blood lipids from oxidative damage — one of very few approved polyphenol health claims in the EU. Rapidly absorbed orally but extensively metabolized. Also studied for anti-inflammatory effects and endothelial function in small RCTs.
Top Products