Quercetin 1000 mg®

Non-Nutrient / Non-Botanical

Brand: Best Naturals

Tablet or PillNon-Nutrient/Non-BotanicalOn Market

Functions

Immune Support

Product label for Quercetin 1000 mg — Click to view full label

Net Contents

60 Tablet(s)

Serving Size

1 Tablet(s)

Servings Per Container

Supplement Form

Tablet or Pill

Bar Code (UPC/SKU)

8 17716 01800 3

Product Version

Not Present

Label Analysis

Objective insights generated automatically from the official DSLD label — a quick, factual read of how this product is formulated and disclosed.

1Active Ingredients

Single-ingredient formula listed in Supplement Facts.

100%Amount Transparency

Every active ingredient discloses a specific amount per serving.

1Dietary Attributes

Label states: Gluten-Free.

This analysis is generated algorithmically from label data for educational reference only. It is not a product endorsement, ranking, or medical advice.

Allergen Guide

Free From

Milk
Egg
Fish
Wheat
Soy
Gluten

Allergen flags are parsed automatically from the official label's claims and statements. Always verify against the physical product label before use, especially if you have a severe allergy.

Supplement Facts

Serving Size: 1 Tablet(s) · 1 per day

Ingredient	Amount Per Serving
Quercetin Dihydrate	1000 mg	—

Not Present

Other Ingredients

Dicalcium PhosphateCelluloseSilicaMagnesium StearateStearic AcidCroscarmellose SodiumPharmaceutical Glaze

Target Groups

Adult (18 - 50 Years)Gluten FreeSugar Free

Label Claims

All OtherStructure/Function

Directions & Suggested Use

Suggested/Recommended/Usage/Directions

Suggested Use: As a dietary supplement, take one (1) tablet daily or as directed by your qualified healthcare professional.

Warnings & Precautions

Precautions re: Children

Keep out of the reach of children.

Precautions re: All Other

Do not use if safety seal is broken or missing.

Precautions re: Pregnant or Nursing or Prescription Medications

Caution: For adults only, if you are pregnant, nursing, taking any medications or have any medical condition, consult your doctor before use.

Precautions re: All Other

Discontinue use and consult your doctor if any adverse reactions occur.

Storage

Keep in cool, dry place.

Formulation

Formula re: Contains

Quercetin is a flavonol (a subclass of flavonoids) and is an effective antioxidant, providing cardiovascular support by reducing oxidation of LDL. Quercetin is one half of the rutin molecule, another flavonol, and is the more active antioxidant. Certain research publications indicate that Quercetin may help support the following: Supports healthy histamine level. Supports healthy immune system. Supports circulatory health.

Formulation re: Other

Premium formula

Formulation re: Other

3rd party lab tested

Formulation re: Does NOT Contain

No artificial color, flavor or sweetener, no preservatives, no sugar, no starch, no corn, no soy, no egg, no lactose, no gluten, no wheat, no yeast, no fish.

FDA Statements

FDA Disclaimer Statement

These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.

FDA Statement of Identity

Dietary Supplement

Other Label Statements

Seals/Symbols

Made in USA

Seals/Symbols

GMP Good Manufacturing Practice Product

Manufacturer & Distributor

Distributor

Best Naturals

PO Box 394, Kenilworth, NJ, 07033, USA

1-877-659-6004

Market Reference

$9.00 – $68.82· 40 listings

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$11.89
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$29.99
Nature's Bounty Antioxidant Capsules with Ester-C
Walgreens.com4.8(9)
$24.99
Nature's Nutrition Antioxidant Dihydrate 1000mg Per Serving
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$24.52
365 by Whole Foods Market, Quercetin with Bromelain, 50 Vegetarian Capsules
Whole Foods Market
$24.99

Where to Buy Locally

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GNC
4.4 (61)
Vitamin & supplements store
323 Washington Rd, Washington, PA 15301
Directions (724) 229-8411
FaZe Up Nutrition
4.5 (8)
Vitamin & supplements store
335 Morganza Rd suite 102-A, Canonsburg, PA 15317
Directions (910) 800-1954
The Vitamin Shoppe
4.2 (95)
Vitamin & supplements store
210 Settlers Ridge Center Dr, Pittsburgh, PA 15205
Directions (412) 787-0369
FaZe Up Nutrition
5.0 (50)
Vitamin & supplements store
1229 PA-51, Jefferson Hills, PA 15025
Directions (910) 800-1954
GNC
4.1 (13)
Vitamin & supplements store
3957 Washington Rd, McMurray, PA 15317
Directions (724) 941-6288
GNC
2.8 (5)
Vitamin & supplements store
193 Millers Run Rd Bldg 5, SPC C, Bridgeville, PA 15017
Directions (412) 677-1005
GNC
4.0 (32)
Vitamin & supplements store
285 Settlers Ridge, Robinson Township, PA 15205
Directions (412) 787-2671
GNC
3.7 (38)
Vitamin & supplements store
301 S Hills Village, Pittsburgh, PA 15241
Directions (412) 835-9624

Research & Studies

Possible therapeutic effects of adjuvant quercetin supplementation against early-stage COVID-19 infection: a prospective, randomized, controlled, and open-label …
F Di Pierro, G Derosa, P Maffioli… - … journal of general …, 2021 - Taylor & Francis
… Like most other polyphenols, quercetin shows a very low rate of oral absorption and its … Quercetin in a delivery-food grade system with sunflower phospholipids (Quercetin Phytosome ® …
2021220 citations
Potential clinical benefits of quercetin in the early stage of COVID-19: results of a second, pilot, randomized, controlled and open-label clinical trial
F Di Pierro, S Iqtadar, A Khan… - … journal of general …, 2021 - Taylor & Francis
… mg of QP corresponded to 200 mg of quercetin; therefore, each daily supplementation corresponded to 600 mg of quercetin… a daily direct contact with the medical doctors involved in the …
2021236 citations
The variable plasma quercetin response to 12-week quercetin supplementation in humans
F Jin, DC Nieman, RA Shanely, AM Knab… - European journal of …, 2010 - nature.com
… , quercetin supplementation in doses of 500 and 1000 mg/day caused large but highly variable increases in plasma quercetin … of quercetin from quercetin aglycone and rutin in healthy …
201097 citations
Effects of the dietary flavonoid quercetin upon performance and health
JM Davis, EA Murphy… - Current sports medicine …, 2009 - journals.lww.com
… regarding quercetin is based … supplement further. This article will examine the recent scientific literature concerning the role of quercetin in mental and physical performance and health. …
2009311 citations
The acute effect of ingesting a quercetin-based supplement on exercise-induced inflammation and immune changes in runners
M Konrad, DC Nieman… - … journal of sport …, 2011 - journals.humankinetics.com
… In a study focusing on exercise-stressed cyclists, supplementation with pure quercetin (1,000 mg/day) over a 5-week period reduced illness rates but did not attenuate postexercise …
2011100 citations
Safety aspects of the use of quercetin as a dietary supplement
S Andres, S Pevny, R Ziegenhagen… - Molecular nutrition & …, 2018 - Wiley Online Library
… aglycone, and frequently in daily doses of up to 1000 mg d –… quercetin used as single compound in dietary supplements. … critical health aspects regarding the safe use of quercetin as …
2018712 citations

Data sourced from the U.S. National Institutes of Health, Office of Dietary Supplements Dietary Supplement Label Database (DSLD) · Label entered 2022-06-16. DSLD Label ID: 270047. 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.