Brand: Natural Factors

CapsuleOn Market
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Net Contents

60 Vegetarian Capsule(s)

Serving Size

1 Capsule(s)

Servings Per Container

Not specified

Supplement Form

Capsule

Bar Code (UPC/SKU)

0 68958 01390 9

Product Version

Not specified

Suggested Use

Suggested Usage: 1 capsule per day or as directed by a health professional.

Market Reference

$12.95 – $191.70· 40 listings
  • Natural Factors Quercetin 500 mg

    Fruitful Yield4.8(2100)
    $19.57
  • Natural Factors Quercetin with Zinc and Copper

    Walmart - Pattern4.8(2100)
    $23.07
  • Natural Factors Quercetin 500mg

    HSU &4.8(2100)
    $20.96
  • Natural Factors C Extra + Quercetin

    Walmart - Pattern4.8(382)
    $13.97
  • Natural Factors Quercetin LipoMicel Matrix

    Nature's Finest4.8(2300)
    $37.46
  • Spring Valley Antioxidant Capsules

    Walmart4.4(63)
    $14.48
  • Natural Factors CherryRich Super Strength Cherry Concentrate

    iHerb4.8(799)
    $16.07
  • NOW Quercetin 500 mg

    Target4.8(1300)
    $23.99

Where to Buy Locally

Enter your city or ZIP code to find supplement & health stores in your area that may carry this product.

Showing representative supplement & health retailers — search above for stores in your area.

  • The Vitamin Shoppe

    4.5 (154)

    Vitamin & supplements store

    5300 Stockdale Hwy, Bakersfield, CA 93309

  • Prime Sports Nutrition

    4.9 (202)

    Vitamin & supplements store

    4800 White Ln Ste G, Bakersfield, CA 93309

  • Rev Nutrition

    4.9 (91)

    Vitamin & supplements store

    4701 White Ln, Bakersfield, CA 93313

  • Max Muscle Nutrition

    4.8 (41)

    Vitamin & supplements store

    2660 Oswell St Ste 103, Bakersfield, CA 93306

  • eupepwell

    5.0 (4)

    Vitamin & supplements store

    5630 District Blvd #120, Bakersfield, CA 93313

  • NutraZone Nutrition

    5.0 (99)

    Vitamin & supplements store

    3401 Coffee Rd c, Bakersfield, CA 93308

  • Iron Arms Bodybuilding Supplements

    5.0 (65)

    Vitamin & supplements store

    6801 White Ln STE D, Bakersfield, CA 93309

  • Nanette's Nature's Sunshine Products

    5.0 (13)

    Vitamin & supplements store

    408 Chester Ave, Bakersfield, CA 93301

Research & Studies

  • Effects of the dietary flavonoid quercetin upon performance and health

    JM Davis, EA Murphy… - Current sports medicine …, 2009 - journals.lww.com

    … the effects of 7 d of quercetin (500 mg twice daily, a dose similar to the 12.5 mg·kg −1 dose … time to fatigue on a bicycle ergometer in healthy untrained men and women. An increase in …

    2009311 citations
  • Health benefits of quercetin

    R Kumar, S Vijayalakshmi… - Defence Life Science …, 2017 - publicationsdrdo.in

    … Quercetin was generally available, in the form of capsules or tablets … 50 mg to 500 mg, as dietary supplements. The dosage of quercetin has been recommended based on the health …

    2017125 citations
  • The effect of quercetin supplementation on selected markers of inflammation and oxidative stress

    G Askari, R Ghiasvand, A Feizi… - … research in medical …, 2012 - pmc.ncbi.nlm.nih.gov

    … 8 weeks in four groups, each containing 15 individuals: 500 mg quercetin + 250 mg vitamin C as pro-oxidant (Q+C), 500 mg of quercetin alone (Q), 250 mg of vitamin C alone (C), and …

    2012177 citations
  • Influence of quercetin supplementation on disease risk factors in community-dwelling adults

    AM Knab, RA Shanely, DA Henson, F Jin… - Journal of the American …, 2011 - Elsevier

    … The objective of this study was to investigate the effect of quercetin, vitamin C, and niacin supplements (500 mg quercetin, 125 mg vitamin C, and 5 mg niacin [Q-500]; 1,000 …

    201163 citations
  • The effects of quercetin supplementation on body composition, exercise performance and muscle damage indices in athletes

    G Askari, R Ghiasvand, Z Paknahad… - International journal …, 2013 - pmc.ncbi.nlm.nih.gov

    … a 500 mg supplemental quercetin capsule plus a 250 mg vitamin C pill, a 500 mg supplemental quercetin capsule plus a 250 mg … at Isfahan University of Medical Sciences having an …

    201366 citations
  • Dose–response to 3 months of quercetin-containing supplements on metabolite and quercetin conjugate profile in adults

    L Cialdella-Kam, DC Nieman, W Sha… - British journal of …, 2013 - cambridge.org

    … , and thus improve our understanding of the health benefits of flavonoids and their underlying … apparent with the 1000 mg/d dose at 1 month, while the effects of the 500 mg/d dose were …

    201374 citations

Data sourced from the U.S. National Institutes of Health, Office of Dietary Supplements Dietary Supplement Label Database (DSLD) · Label entered 2021-04-22. DSLD Label ID: 247523. This information is provided for educational reference only and is not medical advice. Always follow the product label and consult a doctor or pharmacist before use.