vitamin
Niacin supplements
Half of the 12,413 niacin supplements in the NIH label database that print an amount list 20 mg or less per serving; the middle half list 13.2 mg to 48 mg, and 35% of the 12,334 with a plausible amount give more than the adult upper limit at the most servings their labels direct (DSLD version 9.4.0, January 2026). The 295 products whose only supplement ingredient is niacin list a median of 500 mg, and 98% of them give more than the upper limit.
- Products listing it
- 12,77912,413 print an amount; 359 list it inside a blend without an amount
- Median per serving
- 20 mgmiddle half 13.2 mg to 48 mg
- FDA Daily Value
- 16 mgthe median is 125% of it
- Adult upper limit (IOM)
- 35 mg4,377 products go above it a day
How much niacin do supplements contain?
The median product lists 20 mg per serving. One in ten lists 5 mg or less, one in ten 100 mg or more. The amount printed most often is 20 mg (2,521 products).
Products by amount of niacin per serving
12,413 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).
How do the amounts compare with the Daily Value and the upper limit?
The FDA Daily Value for niacin is 16 mg (adults and children 4 and older). The median product gives 125% of it per serving; the 90th percentile 625%.
The adult Tolerable Upper Intake Level is 35 mg a day (synthetic forms from supplements and fortified foods). At the most servings their labels direct, 4,377 of the 12,334 products with a plausible amount (35.5%) give more than that from the supplement alone (what counts as plausible).
The upper limit is for total intake from food, water and supplements unless stated, and does not apply under medical supervision. A label amount is what the maker printed. This is data, not advice: the NIH ODS fact sheets explain what each nutrient does.
Sources: 21 CFR 101.9(c)(8)(iv) (Daily Values); Institute of Medicine, DRI summary tables (2011) (upper limits); on reading them, the FDA's Daily Value page.
Which products list the most niacin?
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).
- NiaPlexKaruna1,000 mg
- Hb HDL BenefitPRN Physician Recommended Nutriceuticals1,000 mg
- Vitamin B3 Niacin 1000 mgLife Extension1,000 mg
- Niacinamide 1,000 mgNature's Life1,000 mg
- Memory BoostHighland Laboratories1,000 mg
- Timed Release Niacin 100 mgRugby1,000 mg
- First Step VitaminsVitalBulk1,000 mg
- Niacin 1000 mgVitalBulk1,000 mg
Have the amounts changed over the years?
Products whose current label entered DSLD in 2011 list a median of 26 mg; those entered in 2025, 20 mg.
| Year | Products | Median per serving |
|---|---|---|
| 2011 | 287 | 26 mg |
| 2012 | 850 | 25 mg |
| 2013 | 1,066 | 20 mg |
| 2014 | 648 | 20 mg |
| 2015 | 635 | 20 mg |
| 2016 | 566 | 20.2 mg |
| 2017 | 637 | 25 mg |
| 2018 | 565 | 20 mg |
| 2019 | 679 | 20 mg |
| 2020 | 1,065 | 20 mg |
| 2021 | 1,006 | 20 mg |
| 2022 | 1,181 | 20 mg |
| 2023 | 997 | 20 mg |
| 2024 | 1,185 | 20 mg |
| 2025 | 1,046 | 20 mg |
Source: DSLD label entry dates and amounts, current labels.
In which products and brands?
Products listing niacin by DSLD product type
Brands listing it most: Douglas Laboratories (253), Nature's Way (232), Nature's Plus (208), Bronson (96), Cellucor (92), Country Life (86), NOW (81), ProCaps Laboratories (79), Metagenics (78), Rainbow Light (75).
Every product listing niacin
12,779 products, A to Z by name (page 11 of 256), each with the amount its label prints; an amount far outside what other labels print is marked as a possible slip.
- Advanced Strength Circulation SupportNutriRise19 mg
- Advanced Stress Formula Plus ZincGeri-Care100 mg
- Advanced Sun ViteRexall Sundown Naturalist20 mg
- Advanced Superfood Greens & Vegetables Berry FlavoredH!D Hallelujah Diet0.4 mg
- Advanced Superfood Greens & Vegetables PlainH!D Hallelujah Diet0.4 mg
- Advanced VeganPure Vegan50 mg
- Advanced Woman's Formula Hair, Skin & NailsFuturebiotics · off the market50 mg
- Advanced Women's FormulaShen Min10 mg
- Advanced Women's FormulaNatrol Shen Min10 mg
- Advanced Women's Formula Hair, Skin & NailsFuturebiotics · off the market50 mg
- Advanced Women's Formula Multi Vitamin Energy PlusFuturebiotics50 mg
- Advantage PlusDouglas Laboratories10 mg
- Advantage Plus IIDouglas Laboratories10 mg
- Advantage PowderDouglas Laboratories50 mg
- Aero Shot Energy RaspberryAero Designs · off the market20 mg
- AFA Fresh Frozen SuperfoodE3Livein a blend
- AFA-GenGenestra Brands30 mg
- Affirm XLAffirm XL · off the market2 mg
- African MangoiPro Organic Supplements · off the marketin a blend
- African Mango B12 DropsAbsolute Nutrition0.4 mg
- After Glow Post Workout Euphoria Bazooka FruitBioRhythm · off the marketin a blend
- After Glow Post Workout Euphoria Cherry BombBioRhythm · off the marketin a blend
- After Glow Post Workout Euphoria Orange PushupBioRhythm · off the marketin a blend
- After Glow Post Workout Euphoria WatermelonBioRhythm · off the marketin a blend
- After Glow WatermelonBioRhythm · off the marketin a blend
- After Max Chocolate SundayOptimum Nutrition3.9 mg
- After Max Vanilla Ice CreamOptimum Nutrition3.9 mg
- After PartyRise-N-Shine75 mg
- AfterShock Fruit PunchMYOGENIX40 mg
- AfterShock Orange AvalancheMYOGENIX40 mg
- AfterShock Pina ColadaMYOGENIX40 mg
- AfterShock Shockolate MilkMYOGENIX40 mg
- AfterShock Tropical TyphoonMYOGENIX40 mg
- AfterShock Wild Berry BlastMYOGENIX40 mg
- Ag1Athletic Greens20 mg
- Age 50+ Multi Iron-Free365 Everyday Value20 mg
- Age DefyingRx Select Beauty50 mg
- Age Defying FormulaCalifornia Academy of Health20 mg
- Age Defying Skincare VitaminVite MD10 mg
- Age RenewBody Basics25 mg
- Age-Less ChoiceBluebonnet · off the market50 mg
- Age-Less Choice Men 50+Bluebonnet50 mg
- Age-Less Choice Women 50+Bluebonnet50 mg
- Ageless Essentials With Product BIsagenix10 mg
- Agent Zero X Angry Bull FlavorTwisted Labs25 mg
- AKG GN Men's FormulaHigoin a blend
- AKG GN Women's FormulaHigoin a blend
- Al's FormulaThorne Research · off the market160 mg
- Al's FormulaThorne · off the market160 mg
- AlarmImage Sports25 mg