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 145 of 256), each with the amount its label prints; an amount far outside what other labels print is marked as a possible slip.
- MultiVegAmazing Herbs30 mg
- Multivita-FemFull Life5 mg
- Multivita-MenFull Life20 mg
- Multivita-Men 1,000 mgFull Life20 mg
- Multivitamin21st Century · off the market20 mg
- MultivitaminShredz Supplements500 mg
- MultivitaminGNC Total Lean50 mg
- Multivitaminalpha betic · off the market40 mg
- MultivitaminGeritol · off the market20 mg
- MultiVitaminBodyBuilding.com Foundation Series25 mg
- MultivitaminOptiYouRX4 mg
- MultivitaminSwolverine20 mg
- MultivitaminRugby20 mg
- MultivitaminGNC50 mg
- MultivitaminAllegany Nutrition38.3 mg
- MultivitaminBodybuilding.com Signature60 mg
- MultivitaminKaged16 mg
- MultivitaminNutricost25 mg
- MultivitaminDNA Miracles Isotonix20 mg
- MultivitaminIsotonix40 mg
- MultivitaminLightbody15 mg
- MultivitaminMomentous60 mg
- MultivitaminNaturesPlus Animal Parade20 mg
- MultivitaminCelebrate13 mg
- Multivitamin & Essential Minerals BerryFight Labs16 mg
- Multivitamin & MineralNature's Own9 mg
- MultiVitamin & MineralNature's Sunshine10 mg
- Multivitamin & Mineral (Adult Formula)Pharmax50 mg
- Multivitamin & Mineral Complex Natural Mango FlavorCountry Life25 mg
- MultiVitamin & Mineral Natural Orange/Mango FlavorChildLife Essentials · off the market10 mg
- Multivitamin & Mineral Powder includes Amino AcidsThe Vitamin Shoppe100 mg
- Multivitamin & Mineral TabletEnfamil20 mg
- MultiVitamin & Mineral without Copper & IronPharmax50 mg
- Multivitamin & MineralsF3 Nutrition · off the market50 mg
- Multivitamin & Minerals for African American WomenSequence Vitamins14 mg
- Multivitamin & Minerals Gummies Raspberry FlavorVitaDrops8 mg
- Multivitamin & Minerals Men's Stress SupportNatureWise30 mg
- Multivitamin & Minerals Prenatal CompleteNatureWise20 mg
- MultiVitamin & MultimineralNaturgin Products USA38 mg
- Multivitamin & Multimineral SupplementThe Center for Medical Weight Loss20 mg
- Multivitamin + 15 mg L-MethylfolateMethylPro50 mg
- Multivitamin + FocusGNC20 mg
- Multivitamin + ImmuneGNC16 mg
- Multivitamin + Iron Tropical CherryEZ Melts16 mg
- Multivitamin 50 PlusGNC Women's50 mg
- Multivitamin ActiveGNC Women's50 mg
- Multivitamin Active without IronGNC Women's50 mg
- Multivitamin Adult GummyMeijer10 mg
- Multivitamin AdultsWell At Walgreens20 mg
- Multivitamin AdultsWalgreens20 mg