PlainVitamins

non-nutrient/non-botanical

Quercetin supplements

Half of the 1,548 quercetin supplements in the NIH label database that print an amount list 100 mg or less per serving; the middle half list 26.5 mg to 250 mg (DSLD version 9.4.0, January 2026). The 74 products whose only supplement ingredient is quercetin list a median of 500 mg.

Products listing it
2,3931,548 print an amount; 845 list it inside a blend without an amount
Median per serving
100 mgmiddle half 26.5 mg to 250 mg

How much quercetin do supplements contain?

The median product lists 100 mg per serving. One in ten lists 10 mg or less, one in ten 500 mg or more. The amount printed most often is 50 mg (194 products).

Products by amount of quercetin per serving

1,548 products, log scale; extreme 0.2% at each end left out of the drawing.

Quercetin: products by amount per serving3 mg10 mg100 mg
Quercetin: products by amount per serving3 mg10 mg30 mg100 mg300 mg1,000 mg
Quercetin: products by amount per serving3 mg10 mg30 mg100 mg300 mg1,000 mg
Quercetin: products by amount per serving3 mg10 mg30 mg100 mg300 mg1,000 mg
Quercetin: products by amount per serving3 mg10 mg30 mg100 mg300 mg1,000 mg
The amounts printed most often
Amount per servingProductsFor example
50 mg194 Vision Support (Pathway To Healing); TheraBetic Multi-Vitamin (Windmill); Immune System Support (Vitabase)
100 mg180 Pycnogenol Complex (Source Naturals); Resveratrol 125 mg (ResVitale); Vision Support (Vitabase)
500 mg133 Aller-7 Support (Vitabase); Quercetin 500 Plus (Vitabase); Respiration Formula (Bronson Laboratories)
25 mg132 LifeEssence (Pure Essence Labs); Vision Support (Meijer Naturals); Basic Nutrient Support Capsule (Pathway To Healing)
250 mg116 Healthy Energy (FRS); Healthy Energy Pineapple Mango (FRS); Healthy Energy Low Cal Orange (FRS)
200 mg71 Bio-Cetin Forte (Douglas Laboratories); Eaq10 (OL Olympian Labs); Aller Clear Hx (InVite)
30 mg70 Ocular Formula (GNC Preventive Nutrition); Life Multi Complete (VitaCeutical Labs); Super Antioxidant Formula (Vitabase)
10 mg64 One 'N' Only Men's Formula (Pure Essence Labs); Bilberry (Bronson Laboratories); Joint Support (Meijer Naturals)
150 mg43 Systa-Zyme (Bronson Laboratories); Neuro-Natural Memory (Xtendlife); Resvera-Gold (Douglas Laboratories)
20 mg41 Keratin Enhance With Biotin And Resveratrol 500 MG KERATIN (ResVitale); Green Source (Radiance); Superior Vitamin C 1000 mg (Country Life)

Source: Supplement Facts rows of every product's current label, NIH ODS Dietary Supplement Label Database version 9.4.0; amounts in one measure (weight).

Which products list the most quercetin?

On-market products, per serving, with a plausible amount: the rule leaves out likely entry slips, such as an amount far beyond every other label with no %DV or strength on the label to back it (each product page still shows its own amount, marked).

Have the amounts changed over the years?

Products whose current label entered DSLD in 2011 list a median of 30 mg; those entered in 2025, 100 mg.

Median quercetin per serving by the year the label entered DSLD (years with 20+ products)
YearProductsMedian per serving
20113130 mg
20129950 mg
201313450 mg
201460100 mg
20154055 mg
201641100 mg
20177350 mg
20186277.5 mg
201963100 mg
202011045 mg
2021135100 mg
2022148100 mg
2023175100 mg
2024204110 mg
2025173100 mg

Source: DSLD label entry dates and amounts, current labels.

In which products and brands?

Products listing quercetin by DSLD product type

Quercetin by product typeOther Combinations1,397Non-Nutrient/Non-Botanical131Botanical with Nutrients15Botanical5
Quercetin by product typeOther Combinations1,397Non-Nutrient/Non-Botanical131Botanical with Nutrients15Botanical5
Quercetin by product typeOther Combinations1,397Non-Nutrient/Non-Botanical131Botanical with Nutrients15Botanical5
Quercetin by product typeOther Combinations1,397Non-Nutrient/Non-Botanical131Botanical with Nutrients15Botanical5
Quercetin by product typeOther Combinations1,397Non-Nutrient/Non-Botanical131Botanical with Nutrients15Botanical5

Brands listing it most: Nature's Plus (28), Life Extension (27), Source Naturals (27), XYMOGEN (22), Emergen-C (21), SuperSmart (19), Pure Encapsulations (19), Designs for Health (18), Purity Products (18), Ortho Molecular Products (16).

Every product listing quercetin

2,393 products, A to Z by name (page 43 of 48), each with the amount its label prints; an amount far outside what other labels print is marked as a possible slip.

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