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Quercetin

product on market Capsule Doctor Recommended Supplements Safety: 100/100
100/100

This product looks safe

  • No ingredients exceed tolerable upper intake levels
  • 100% of ingredients have research evidence
A Label Compliance Grade

What the Evidence Says

AI-generated · Qwen 3.6 · grounded in 1 source · methodology

Quercetin is a flavonoid with moderate evidence supporting its role as an antioxidant and anti-inflammatory agent. Research suggests it may help modulate immune responses and support respiratory health. However, overall clinical evidence coverage for this specific ingredient remains limited.

AI-generated summary based on research evidence. Not medical advice.

Label

Product Label

Label for Quercetin
Open Full PDF View on NIH DSLD →
Details

Label Data

2 Capsule(s)
Serving Size
60
Servings
Non-Nutrient/Non-Botanical
Product Type
100%
Evidence Coverage
Ingredients

Supplement Facts — Evidence Check

1000 mg
Market median: 500.0mg (283 products) 174 studies (A:0, B:62)

Other Ingredients

Methylcellulose Capsule Silicon Dioxide Magnesium Stearate Rice Flour
Claims

Label Claims — Verification

Unverified All Other
Unverified Structure/Function
Info

Product Information

Directions for Use

Suggested Use: As a dietary supplement, take two (2) capsules daily, preferably with a meal, or as recommended by a healthcare professional. For best results, use for a period of no less than 4-6 weeks.

Warnings & Precautions

Caution: Do not exceed recommended dose. Do not use if safety seal is damaged or missing. Product may stain fabric.

Pregnant or nursing mothers, children under the age of 18, and individuals with a known medical condition should consult with a physician before taking this or any dietary supplement.

Keep out of reach of children.

Formulation Notes

Doctor Recommended Quercetin is a flavonoid (plant pigment) naturally found in fruits and vegetables. This 1000 mg per serving formula is rich in antioxidants to support healthy aging, cardiovascular health and immune health.

Healthy joint & immune support

Additional Information

Store in a cool, dry place. Store at room temperature.

Made In USA With Global Ingredients GMP Good Manufacturing Practice Quality Product

Please Recycle 60 day supply

Metadata

Product Details

UPC / SKUX002N4DXIX
DSLD Entry Date2022-06-16
Product TypeNon-Nutrient/Non-Botanical
FormCapsule
DSLD ID266176
Data Updated2026-04-11
Research

Research Evidence

184
Research Sources
55
Avg Quality
91
Systematic Review
75
Meta Analysis
7
Rct
7
Clinical Trial
2
Cochrane Review
1
Openfda Safety
B Treatment of gouty arthritis with traditional Chinese medicine decoction: Meta-analysis, network pharmacology analysis, and molecular docking
Meta Analysis Medicine 2024 PubMed DOI
B Effects of quercetin supplementation on lipid profile: A systematic review and meta-analysis of randomized controlled trials
Meta Analysis Critical reviews in food science and nutrition 2017 PubMed
B Dietary polyphenols and the risk of metabolic syndrome: a systematic review and meta-analysis
Meta Analysis BMC endocrine disorders 2024 PubMed DOI
B Quercetin and endurance exercise capacity: a systematic review and meta-analysis
Meta Analysis Medicine and science in sports and exercise 2011 PubMed DOI
B Dietary flavonoid intake and smoking-related cancer risk: a meta-analysis
Meta Analysis PloS one 2013 PubMed DOI
B Clinical efficacy evaluation and potential mechanism prediction on Guizhi-Shaoyao-Zhimu decoction in the treatment of gouty arthritis based on meta-analysis, network pharmacology analysis, and molecular docking
Meta Analysis Medicine 2023 PubMed DOI
B A Systematic Review: Quercetin-Secondary Metabolite of the Flavonol Class, with Multiple Health Benefits and Low Bioavailability
Systematic Review International journal of molecular sciences 2024 PubMed DOI
B Dietary flavonoid for preventing colorectal neoplasms.
Cochrane Review The Cochrane database of systematic reviews PubMed DOI
B Flavonoids for treating venous leg ulcers.
Cochrane Review The Cochrane database of systematic reviews PubMed DOI
B The effects of quercetin supplementation on lipid profiles and inflammatory markers among patients with metabolic syndrome and related disorders: A systematic review and meta-analysis of randomized controlled trials
Meta Analysis Critical reviews in food science and nutrition 2020 PubMed DOI
View all evidence for Quercetin →
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This product page is for informational purposes only and does not constitute medical advice. Always consult your healthcare provider before taking any supplement.