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Quercetin SAP

product on market Capsule NFH 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 bromelain are researched for their roles in supporting immune function and managing inflammatory responses. Evidence for these effects is generally considered moderate, though the overall evidence coverage for this specific formulation is limited. The ingredient profile maintains a high safety rating.

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

Label

Product Label

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

Label Data

1 Capsule(s)
Serving Size
60
Servings
Non-Nutrient/Non-Botanical
Product Type
50%
Evidence Coverage
Ingredients

Supplement Facts — Evidence Check

500 mg
Market median: 500.0mg (283 products) 174 studies (A:0, B:62)
100 mg
Market median: 200.0mg (136 products) 3 studies — no high-quality reviews

Other Ingredients

Vegetable Magnesium Stearate Silicon Dioxide Vegetable Hypromellose Water, Purified
Claims

Label Claims — Verification

Unverified All Other
Unverified Structure/Function
Info

Product Information

Directions for Use

Directions for use: Adults: Take 1 capsule twice daily with food in divided doses or as directed by your healthcare practitioner. Duration of use: Consult a healthcare practitioner for use beyond 4 weeks.

Warnings & Precautions

Cautions and warnings: Consult a healthcare practitioner prior to use if you are pregnant or breast-feeding; if you have a gastrointestinal lesion/ulcer; if you are taking anticoagulants/blood thinners, anti-inflammatories, or antibiotics; or if you are having surgery.

Known adverse reactions: Hypersensitivity/allergy has been known to occur; in which case, discontinue use.

Nausea, vomiting, and diarrhea have been known to occur; in which case, discontinue use and consult a healthcare practitioner.

Do not use if seal is broken.

Keep out of reach of children.

Formulation Notes

Quercetin SAP provides the bioflavonoid quercetin blended with the proteolytic enzyme bromelain to help promote healthy immune responses and respiratory tract function.

All ingredients listed for this product lot number have been tested by a third-party laboratory for identity, potency, and purity.

Contains no: Gluten, soy, wheat, corn, eggs, dairy, yeast, citrus, preservatives, artificial flavor or color, starch, or sugar.

This product is non-GMO and vegan friendly.

This product is non-GMO and vegan friendly.

Color, size and smell may vary from one lot to another.

Bioflavonoid

Additional Information

Store away from light.

NPN 80039352

Metadata

Product Details

UPC / SKU8 56711 00148 1
DSLD Entry Date2023-03-22
Product TypeNon-Nutrient/Non-Botanical
FormCapsule
BrandNFH
DSLD ID273095
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.