Oleuropein (olive extract)
Tier 2 — promising · Cardiovascular · Antiviral
The primary active compound in olive leaf extract responsible for its heart-protective effects. Trials show it helps lower blood pressure and improves blood vessel function. Lab studies confirm antiviral and antimicrobial activity. Related to but more concentrated than what you get from eating olives or olive oil. Generally well tolerated at standard doses.
Dose: 250–500 mg/day oleuropein from standardised olive leaf extract