Home/ Supplements/ Quercetin/ C 500 mg with Bioflavonoids

C 500 mg with Bioflavonoids

product on market Capsule Natural Grocers by Vitamin Cottage 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

Vitamin C is supported by strong evidence for its role in immune function and antioxidant protection. Citrus bioflavonoids are often included to potentially enhance the absorption and activity of vitamin C, though research on this synergy is more limited. Together, these ingredients support general cellular health and collagen synthesis.

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

Label

Product Label

Label for C 500 mg with Bioflavonoids
Open Full PDF View on NIH DSLD →
Details

Label Data

1 Vegetarian Capsule(s)
Serving Size
180
Servings
Other Combinations
Product Type
50%
Evidence Coverage
Ingredients

Supplement Facts — Evidence Check

Vitamin C
500 mg (556% DV)
Market median: 500.0mg (283 products) 174 studies (A:0, B:62)

Other Ingredients

Capsule Microcrystalline Cellulose Silica Rice Bran
Claims

Label Claims — Verification

Unverified All Other
Unverified Structure/Function
Info

Product Information

Directions for Use

Suggested use: As a dietary supplement, adults take one (1) vegetarian capsule daily, or as directed by a health care professional.

Warnings & Precautions

Caution: As with any supplement, consult your healthcare practitioner before using this product, especially if you are pregnant, nursing, or are under medical supervision for any reason.

Keep out of reach of children.

For serious adverse event reporting call (877) 455-2826.

Formulation Notes

Immune support

GF (Gluten free)

Vegetarian

Contains no: Sugar, salt, dairy, yeast, wheat, gluten, soy, preservatives, magnesium stearate, artificial colors or flavors.

Additional Information

Our Unique Story It was 1955 when Margaret and Philip Isely started Natural Grocers with $200 and a dream to make healthy living attainable for everyone. Now this family legacy is evolving with Natural Grocers Brand supplements, bringing you premium quality products at Always Affordable prices. We only put our name on formulas that meet our unrivalved quality standards, and we continue raising the bar on these standards without raising the bar on your budget. Our supplements are GMP (Good Manufacturing Practices) certified, ingredient verified, screened for heavy metals, and formulated without questionable fillers, artificial colors, sweeteners, flavors, and other problematic ingredients. We scrutinize every detail, so you don't have to, because we are, and always have been, your Original good4u Grocers. To your health, - The Isely Family

GMP Good Manufacturing Practice

Made in USA

BPA Free

Store in a cool, dry place and away from direct light.

Metadata

Product Details

UPC / SKU8 49327 00328 4
DSLD Entry Date2022-02-23
Product TypeOther Combinations
FormCapsule
DSLD ID260719
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 →
Compare

Similar Products

View all Quercetin products →

This product page is for informational purposes only and does not constitute medical advice. Always consult your healthcare provider before taking any supplement.