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Quercetin: study protocols

9 study groups say how much Quercetin participants took a day. These are the doses the studies gave. They are not a recommendation.

Quercetin: what the research found →

Dose per serving from products

2,084 products in our catalogue print how much Quercetin a serving holds.

Most common: 25 mg to 50 mg, 19% of 2,084 products.

Dose per servingProducts
5 mg or less
103
5 mg to 10 mg
81
10 mg to 25 mg
299
25 mg to 50 mg
394
50 mg to 100 mg
294
100 mg to 250 mg
328
250 mg to 500 mg
353
500 mg to 1 g
203
over 1 g
29

Dose per serving from research

9 study groups in 5 studies say how much Quercetin participants took a day.

These are the doses the studies gave. They are not a recommendation.

Most common: 250 mg to 500 mg, 44% of 9 study groups.

Daily doseStudy groups
250 mg or less
1
250 mg to 500 mg
4
500 mg to 1 g
3
1 g to 2.5 g
1

Commonly used together

None of these 9 study groups took Quercetin with anything else.

9 study groups

Study
Improved Oral Absorption of Quercetin from Quercetin Phytosome®, a New Delivery System Based on Food Grade Lecithin
2019 · Treatment A (quercetin 500 mg) · Healthy adults aged 18–50 years, both sexes, without significant organic or psychiatric disease
500 mg1 day12
Improved Oral Absorption of Quercetin from Quercetin Phytosome®, a New Delivery System Based on Food Grade Lecithin
2019 · Treatment B (Quercetin Phytosome 500 mg) · Healthy adults aged 18–50 years, both sexes, without significant organic or psychiatric disease
500 mg1 day12
The variable plasma quercetin response to 12-week quercetin supplementation in humans
2010 · Q-500 · Adults aged 18–85 recruited from the community
500 mg12 weeks—
Targeting protein disulfide isomerase with the flavonoid isoquercetin to improve hypercoagulability in advanced cancer
2019 · cohort A · Adults with advanced cancer at high risk for thrombosis; age and sex not specified
500 mg8 weeks28
Improved Oral Absorption of Quercetin from Quercetin Phytosome®, a New Delivery System Based on Food Grade Lecithin
2019 · Treatment C (Quercetin Phytosome 250 mg) · Healthy adults aged 18–50 years, both sexes, without significant organic or psychiatric disease
250 mg1 day12
The variable plasma quercetin response to 12-week quercetin supplementation in humans
2010 · Q-1000 · Adults aged 18–85 recruited from the community
1 g12 weeks—
Targeting protein disulfide isomerase with the flavonoid isoquercetin to improve hypercoagulability in advanced cancer
2019 · cohort B · Adults with advanced cancer at high risk for thrombosis; age and sex not specified
1 g8 weeks29
Quercetin Modulates IGF-I and IGF-II Levels After Eccentric Exercise-Induced Muscle-Damage: A Placebo-Controlled Study
2021 · quercetin (Q) treatment · Healthy moderately active men aged 18–30
1 g2 weeks12
Short-term effect of quercetin on the pharmacokinetics of fexofenadine, a substrate of P-glycoprotein, in healthy volunteers
2009 · quercetin phase · 12 healthy volunteers
1.5 g7 days12