A citrus and buckwheat flavonoid linked with small blood-vessel health.
Retina ClearIn plain words
Rutin is a flavonoid glycoside, meaning quercetin with a sugar attached. It occurs in buckwheat, apples and citrus peel.
Retina ClearWhat the evidence shows
Research is mostly about veins and circulation. Well-run human trials on rutin and eye health are rare, so its place here rests on plausibility.
In this capsule
Rutin sits beside quercetin on the list, so you get two closely related molecules at unstated amounts.
Watch-outs: Generally well tolerated; at very high intakes headaches or stomach upset can occur.
Common question
How is rutin different from quercetin?
Rutin is quercetin bound to a sugar. The gut converts some of it back.