Quercetin in Retina Clear: What It Is and What the Research Says
Retina ClearA common plant flavonoid found in onions, apples and capers.
Retina ClearWhat it is
Quercetin is one of the most widespread flavonoids in the diet. It is found in onions, apples, berries and tea.
What research says
Quercetin is well studied as an antioxidant in cells. In human eye research, evidence is thin: most reports involve lens or retina cells in the lab or animal models. Its use in eye formulas is mostly based on this early work.
How Retina Clear uses it
Retina Clear lists quercetin in the blend, with no stated dose. It may overlap with rutin (which is a quercetin compound).
Cautions: Can interact with certain medicines, including some antibiotics (quinolones) and drugs handled by liver enzymes, and may affect blood pressure medicines. Ask a pharmacist if you take prescription drugs.
Quick answer
Is quercetin safe to take daily?
Food amounts are fine. Supplement doses can interact with some drugs, so check with a pharmacist if you take prescriptions.