Quercetin 1000 mg®

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

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

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.

Serving Size: 2 Capsule(s) · 1 per day

Not Present

• 

  Nutricost Quercetin

  iHerb4.8(747)

  $21.95
• 

  Nutricost Quercetin with Bromelain

  Target4.7(2000)

  $34.95
• 

  Best Naturals Quercetin 1000 mg 60 Tablets

  Target4.7(276)

  $17.99
• 

  Horbaach Quercetin Dihydrate 1170mg

  Walmart - Carlyle Nutritionals, LLC

  $17.49
• 

  Nutricost Zinc + Quercetin Supplement 120 Capsules

  iHerb

  $17.95
• 

  Nature's Nutrition Antioxidant Dihydrate 1000mg Per Serving

  Target

  $24.52
• 

  Hello Lovely! Antioxidant Supplement Capsules

  Walmart - SilverOnyx LLC4.0(2)

  $12.72Lowest
• 

  Quercetin 1000mg Per Serving – Extra Strength Quercetin Dihydrate Capsules from Sophora Japonica – Plant-Based Bioflavonoids for Cellular & Immune

  Nature's Nutrition

  $13.32

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.

• Synergy Health

  4.8 (82)

  Vitamin & supplements store

  1941 New Garden Rd #110, Greensboro, NC 27410

  Directions(336) 218-7099

• GNC

  2.9 (31)

  Vitamin & supplements store

  427 Pisgah Church Rd, Greensboro, NC 27455

  Directions(336) 288-8949

• Summit Nutrition

  5.0 (1)

  Vitamin & supplements store

  3107 Summit Ave A, Greensboro, NC 27405

  Directions(336) 681-4024

• Proganiq

  4.8 (16)

  Vitamin & supplements store

  7B Corporate Center Ct, Greensboro, NC 27408

  Directions(888) 247-7642

• Mg12

  5.0 (10)

  Vitamin & supplements store

  8604 Ellisboro Rd, Stokesdale, NC 27357

  Directions(336) 298-7306

• Dove Medical Supply Summerfield

  4.4 (7)

  Medical supply store

  7301 Summerfield Rd, Summerfield, NC 27358

  Directions(336) 441-8900

• My Tonic Life USA

  5.0 (2)

  Vitamin & supplements store

  1902 Lees Chapel Rd, Greensboro, NC 27405

  Directions(336) 265-1920

• Natural Vitality Center

  5.0 (1)

  Vitamin & supplements store

  1301 W Wendover Ave # C, Greensboro, NC 27408

  Directions(336) 232-4847

• 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

• Therapeutic potential and clinical effectiveness of quercetin: a dietary supplement

  V Devi, G Deswal, R Dass, B Chopra… - Recent Advances in …, 2024 - benthamdirect.com

  … Quercetin, having the chemical formula C15H10O7, is the most common dietary flavonoid [5]… Quercetin is a bioflavonoid that has been shown to improve human health in recent years [8]…

  202410 citations

• Daily quercetin supplementation dose-dependently increases plasma quercetin concentrations in healthy humans

  S Egert, S Wolffram, A Bosy-Westphal… - The Journal of …, 2008 - academic.oup.com

  … Our finding that quercetin supplementation did not decrease the concentrations of the proinflammatory cytokine TNFa might be explained by a general lack of quercetin to reduce TNFa …

  2008444 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

  … quercetin, vitamin C, and niacin supplements (500 mg quercetin, 125 mg vitamin C, and 5 mg niacin [Q-500]; 1,000 … Plasma quercetin increased in the Q-500 and Q-1,000 groups. No …

  201163 citations

• Safety evaluation of a soluble granular food containing quercetin glycosides for healthy adults: A randomized controlled trial

  M Iida, M Onozato, H Sasaki, I Yamasaki, T Tanaka… - NFS Journal, 2025 - Elsevier

  Background Quercetin glycosides (QG), enzymatically modified isoquercitrin derivatives, are widely used in functional foods for their antioxidant, antihypertensive, and lipid metabolism …

  2025

• Phytochemicals as nutraceuticals: a review

  JS Dhumal, AK Thikekar, AB Kumbhar… - J Neonatal …, 2025 - researchgate.net

  … They play important pharmacological effects in our health and … Such products may range from dietary supplements to genetically … Quercetin and its derivatives are naturally occurring …

  20251 citations

Data sourced from the U.S. National Institutes of Health, Office of Dietary Supplements Dietary Supplement Label Database (DSLD) · Label entered 2022-07-21. DSLD Label ID: 270729. 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.