Micronutrients & recovery
Quercetin aglycone supplementation at doses of 500 mg or higher significantly reduces blood pressure in individuals with stage 1 hypertension, whereas it has no significant effect on normotensive or pre-hypertensive individuals.
If you have Stage 1 hypertension, taking 500 mg or more of quercetin aglycone daily may help lower your blood pressure by a few mmHg. However, if your blood pressure is already normal, this supplement is unlikely to provide cardiovascular benefits. Consult your doctor before starting, especially if you are on medication.
Edwards et al. [72] found that 730 mg quercetin aglycone was effective in reducing blood pressure in patients diagnosed with stage 1 hypertension, but not in pre-hypertensive individuals... a meta-analysis review evaluated the effectiveness of quercetin supplement in lowering blood pressure in 7 trials. Results showed that a dosage of ≥500 mg quercetin aglycone supplement significantly reduced systolic and diastolic blood pressure...
Why this rating
Based on multiple human clinical trials and a meta-analysis, though sample sizes vary and some studies show null results in non-hypertensive groups.
Source
Dietary Quercetin and Kaempferol: Bioavailability and Potential Cardiovascular-Related Bioactivity in Humans
Wijdan M. Dabeek et al. · Nutrients · 2019
DOI 10.3390/nu11102288
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