non-nutrient/non-botanical
Flavonoid supplements
Half of the 2,343 flavonoid supplements in the NIH label database that print an amount list 50 mg or less per serving; the middle half list 25 mg to 100 mg (DSLD version 9.4.0, January 2026). The 30 products whose only supplement ingredient is flavonoid list a median of 1,000 mg.
- Products listing it
- 2,9232,343 print an amount; 579 list it inside a blend without an amount
- Median per serving
- 50 mgmiddle half 25 mg to 100 mg
How much flavonoid do supplements contain?
The median product lists 50 mg per serving. One in ten lists 10 mg or less, one in ten 250 mg or more. The amount printed most often is 100 mg (372 products).
Products by amount of flavonoid per serving
2,343 products, log scale; extreme 0.2% at each end left out of the drawing.
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 flavonoid?
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).
- Citrus Bioflavonoid Complex 1000 mgVitabase1,000 mg
- Citrus Bioflavonoids 1000 mgBronson1,000 mg
- Citrus Bioflavonoids Complex 1000 mgMartin Avenue Pharmacy1,000 mg
- Citrus Bioflavonoids 1000 mgVitamin World1,000 mg
- Flavonoid 1,000DaVinci Laboratories Of Vermont1,000 mg
- Citrus Bioflavonoid Complex 1000 mgSolgar1,000 mg
- Quiet EarIndiana Botanic Gardens1,000 mg
- Bioflavonoids 1,000 mgNature's Life1,000 mg
Have the amounts changed over the years?
Products whose current label entered DSLD in 2011 list a median of 25 mg; those entered in 2025, 75 mg.
| Year | Products | Median per serving |
|---|---|---|
| 2011 | 86 | 25 mg |
| 2012 | 259 | 55 mg |
| 2013 | 236 | 50 mg |
| 2014 | 87 | 50 mg |
| 2015 | 121 | 50 mg |
| 2016 | 146 | 50 mg |
| 2017 | 134 | 50 mg |
| 2018 | 78 | 50 mg |
| 2019 | 70 | 55 mg |
| 2020 | 193 | 50 mg |
| 2021 | 199 | 60 mg |
| 2022 | 151 | 50 mg |
| 2023 | 199 | 37 mg |
| 2024 | 213 | 60 mg |
| 2025 | 171 | 75 mg |
Source: DSLD label entry dates and amounts, current labels.
In which products and brands?
Products listing flavonoid by DSLD product type
Brands listing it most: Douglas Laboratories (185), Nature's Way (92), Nature's Plus (83), Rainbow Light (43), NOW (38), Country Life (34), VitaCeutical Labs (33), Vitamin World (30), Puritan's Pride (30), Vitamer Laboratories (28).
Every product listing flavonoid
2,923 products, A to Z by name (page 22 of 59), each with the amount its label prints; an amount far outside what other labels print is marked as a possible slip.
- Gold Standard Pre-Workout Blueberry LemonadeOptimum Nutrition100 mg
- Gold Standard Pre-Workout Fruit PunchOptimum Nutrition100 mg
- Gold Standard Pre-Workout Strawberry LimeON Optimum Nutrition100 mg
- Gold TabletsNature's Plus Source of Life · off the market30 mg
- Golden YearsNatures Plus · off the market25 mg
- Goliath Multi VitaminGoliath Labs100 mg
- Grape Seed 100 mgBest Naturals15 mg
- Grape Seed 60 mgNOW · off the market600 mg
- Grape Seed 60 mg - Standardized ExtractNOW600 mg
- Grape Seed ComplexSpring Valley · off the marketin a blend
- Grape Seed Extract 100 mgNova Nutritions15 mg
- Grape Seed Extract 100 mgBasic Vitamins400 mg
- Grape Seed Extract 200 mgWonder Laboratories50 mg
- Grape Seed Extract 200 mgDC50 mg
- Grape Seed Extract 50 mgNature's Bounty500 mg
- Grape Seed Extract 50 mgSundown Naturals250 mg
- Grape Seed Extract 50 mgVitaCeutical Labs · off the market50 mg
- Grape Seed Extract 50 mgVitabase50 mg
- Grape Seed Extract 50 mgGood 'N Natural · off the market60 mg
- Grape Seed Extract 50 mgVitamer Laboratories50 mg
- Grape Seed Extract 50 mgNew Sun60 mg
- Grape Seed Extract 50 mg Plus Green Tea & BioflavonoidsVSN Vital Strength Nutrition · off the market50 mg
- Grape Seed Extract 60 mgThe Vitamin Shoppe300 mg
- Grape Seed Extract 60 mgWonder Laboratories220 mg
- Grape Seed Xtra 50 mgSundown Naturalsin a blend
- Grapeseed ExtractTN Trusted Nutrients30 mg
- Grapeseed Extract 100 mgGood 'N Natural · off the market30 mg
- Grapeseed Extract 100 mgRadiance30 mg
- Grapeseed Extract 100 mgVitamin World30 mg
- Grapeseed Extract 100 mgPuritan's Pride30 mg
- Grapeseed Extract 200 mgNature's Bounty60 mg
- Grapeseed Extract 200 mgPuritan's Pride60 mg
- Grapeseed Extract 300 mgPuritan's Pride30 mg
- Grapeseed Extract 50 mgVitamin World60 mg
- Grapine with ProtectorsNature's Sunshinein a blend
- Green and RedNatures Plus Source of Life · off the market60 mg
- Green and RedNaturesPlus Source of Life60 mg
- Green and Red Mini-TabsNature's Plus Source of Life · off the market60 mg
- Green DefenseJarrow Formulas · off the marketin a blend
- Green SourceRadiance100 mg
- Green SourceGood 'N Natural · off the market50 mg
- Green SourceWonder Laboratories47 mg
- Green SourceDC60 mg
- Green SourcePuritan's Pridein a blend
- Green Source Iron FreePuritan's Pride50 mg
- Green Source Multi Vitamins & MineralsVitamin World60 mg
- Green Source Multivitamin & MineralsVitamin World60 mg
- Green Tea Triple Fat BurnerApplied Nutrition3 mg
- GreenMed RxTaylor MD Formulationsin a blend
- Guna-BasicGUNA Biotherapeutics2 mg