May slightly lower blood pressure in some adults; findings do not establish cardiovascular protection or every preparation’s benefit.
No other ingredients listed
On the label
As a dietary supplement, take 2 capsules, 1-2 times daily, between meals.
The label says to take it on an empty stomach, but what's in this absorbs poorly without dietary fat. Take it with a meal that has some.
$27.80
$0.93 / serving
Near the median of 71 quercetin supplements
Sources & Scoring
Nutrient data (RDA, UL, and safety thresholds) sourced from the NIH Office of Dietary Supplements and the National Academies Dietary Reference Intakes (DRI).
This is not medical advice. Consult a healthcare provider before making changes to your supplement routine.
The score analyzes what's on the label: ingredient doses vs. studied ranges, chemical forms, evidence levels, and known interactions. It does not verify label accuracy or test for contaminants — for that, look for third-party certifications like USP or NSF.
Not medical advice. Consult your healthcare professional.