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Quercetin Plus

product on market Capsule OL Olympian Labs Safety: 100/100
100/100

This product looks safe

  • No ingredients exceed tolerable upper intake levels
  • 50% of ingredients have research evidence
A Label Compliance Grade

What the Evidence Says

AI-generated · Qwen 3.6 · methodology

Quercetin and Vitamin C are researched for their antioxidant properties and potential to support immune function. While Vitamin C has strong clinical evidence, the evidence for Quercetin is more limited. Together, these ingredients may help reduce oxidative stress in the body.

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

Label

Product Label

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

Label Data

2 Capsule(s)
Serving Size
30
Servings
Other Combinations
Product Type
50%
Evidence Coverage
Ingredients

Supplement Facts — Evidence Check

Vitamin C
120 mg (200% DV)
1000 mg
Market median: 500.0mg (283 products) 174 studies (A:0, B:62)

Other Ingredients

Vegetarian Capsule Rice Flour Microcrystalline Cellulose Silicon Dioxide Ascorbyl Palmitate
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 with a meal, or as directed by a healthcare professional.

Warnings & Precautions

Caution: If you are pregnant or nursing, have a medical condition, or are taking medication, consult your healthcare professional before using this or any other nutritional supplement.

Discontinue use if allergic reaction occurs.

Keep out of reach of children.

Formulation Notes

Vegan

Gluten free Allergen free

No: Milk, eggs, fish, crustaceans shellfish, tree nuts, peanuts, wheat, or soybeans.

Non-GMO

Additional Information

Olympian Labs, Inc. products are made with the highest quality ingredients and manufactured according to current Good Manufacturing Practices (cGMP).

We do not use ingredients that were produced using modern biotechnology

Store in a cool, dry place.

REV 09-07-16

Supports immune & sinus health High potency antioxidant Natural seasonal support

Made in USA

Metadata

Product Details

UPC / SKU7 10013 00198 6
DSLD Entry Date2018-04-25
Product TypeOther Combinations
FormCapsule
DSLD ID175833
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.