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 19 of 256), each with the amount its label prints; an amount far outside what other labels print is marked as a possible slip.
- Ancient Nutrients B-ComplexAncient Nutrition12 mg
- Andro XSSports One · off the market25 mg
- Androbolix 300 XLBioRhythm · off the market53.6 mg
- Androtest Maximum StrengthProSource41 mg
- Androvite for MenOptimox Corporation · off the market50 mg
- Androvite for MenOptimox50 mg
- Animal NitroAnimal10 mg
- Animal PakAnimal82 mg
- Animal Pak Cherry Berry FlavorAnimal · off the market82 mg
- Animal Pak Cherry Bomb FlavorAnimal82 mg
- Animal Pak Orange Crushed FlavorAnimal82 mg
- Animal Pak Orange FlavorAnimal · off the market82 mg
- Animal RageAnimal30 mg
- Animal Rage Orange JuicedAnimal30 mg
- Animal Rage Slaughter MelonAnimal30 mg
- Animal Rage XL Grape of WrathAnimal15 mg
- Animal Rage XL Lemon SlayedAnimal15 mg
- Animal Rage XL Mango UnchainedAnimal15 mg
- Animal ShapesMajor13.5 mg
- Animal Shapes Complete With CholineSunmark7.5 mg
- Animal Shapes Kids' FirstSunmark13.5 mg
- Animal Shapes With IronSunmark13.5 mg
- Animal Shapes with IronMajor15 mg
- Annihil8Biogear Begin Series · off the marketin a blend
- Anti Aging Made For WomenShredz50 mg
- Anti-AgingIsotonix Essentials20 mg
- Anti-Aging Collagen Protein Shake Vanillayoutheory · off the market20 mg
- Anti-Aging FormulaMerry Clinic15 mg
- Anti-Aging PrimeLAIFE · off the market30 mg
- Anti-Aging PrimeDEKE & LAIFE30 mg
- Anti-Aging ProLAIFE30 mg
- Anti-AnxietyInvictus Labs · off the market28 mg
- Anti-FatigueKroeger Herb Products Co.5 mg
- Anti-OxidantDouglas Laboratories · off the market20 mg
- Anti-OxidantThorne Research · off the market180 mg
- Anti-Stress + B-ComplexWonder Laboratories103 mg
- Anti-Stress B-Complex EssentialsFoster Regal103 mg
- Anti-Wrinkle 3925MaritzMayer Laboratories · off the market40 mg
- AntiOx OriginalAllergy Research Group37.5 mg
- AntiOx OriginalNutriCology37.5 mg
- Antioxidant BlendThe Vitamin Shoppe · off the market25 mg
- Antioxidant Natural Peppermint FlavorVitaMist1 mg
- Anutra GrainAnutra1.7 mg
- AnxietexApproved Science100 mg
- Anxiety BalancePriority One Nutritional Supplements25 mg
- Anxiety FormulaiPro Organic Supplements · off the market28 mg
- Anxiety Formula 900 mgNutriSuppz28 mg
- Anxiety FreeRidgeCrest Herbals25 mg
- ApetaminTIL Healthcare · off the market15 mg
- Apetigen PlusKramer Novis200 mg