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 224 of 256), each with the amount its label prints; an amount far outside what other labels print is marked as a possible slip.
- Torch Pre-Burn Pre-Workout Drink WildberryMarket America15 mg
- Total Alpha Lipoic AcidNutri-West5 mg
- Total Amino SolutionGenesa3 mg
- Total B with CMajor50 mg
- Total Balance Children'sXtendlife5 mg
- Total Balance Men'sXtendlife26.1 mg
- Total Balance Men's PremiumXtendlife26 mg
- Total Balance UnisexXtendlife · off the market26 mg
- Total Balance Unisex PremiumXtendlife26 mg
- Total Balance Women'sXtendlife26.1 mg
- Total Balance Women's PremiumXtendlife26 mg
- Total BeautyBody Kitchen50 mg
- Total BeetsForce Factor10 mg
- Total Beets Ultimate Heart Health Pomegranate Berry FlavorForce Factor20 mg
- Total BrainNutri-West4 mg
- Total ChelateNutri-West10 mg
- Total Children's ChewableNutri-West6 mg as transcribed, likely a slip
- Total CortNutri-West5 mg
- Total Fat BurnMancore30 mg
- Total FemaleNutri-West5 mg
- Total Formula 3Integrative Therapeutics25 mg
- Total HealthPower Blendz20 mg
- Total Health FormulaMicroTech Professional Formulations20 mg
- Total Lean MultivitaminGNC Total Lean20 mg
- Total MaleNutri-West5 mg
- Total MitochondriaNutri-West15 mg
- Total NiacinNutri-West125 mg
- Total Nutrition Liquid MultivitaminGenesis Today18 mg
- Total Nutrition Liquid MultivitaminGT Genesis Today18 mg
- Total One PrenatalAdvanced Nutrition by Zahler20 mg
- Total Systemic D-ToxNutri-West4 mg
- Total Thyroid #2Nutri-West2 mg
- Total TMNutri-West25 mg
- Total TrimNutri-West25 mg
- Total VeggieNutri-West5 mg
- Total Weight OffProfessional Botanicals26 mg
- Totally ZenCarlson25 mg
- Trac Extreme-No OrangeMHP Maximum Human Performance25 mg
- Trace Liquid Multivitamin Creatine Serum Lemon LimePhytonutritia15 mg
- Trace Liquid Multivitamin Creatine Serum RaspberryPhytonutritia15 mg
- Training PacksPrecision Engineered50 mg
- Training-PeakInner Armour75 mg
- Tranquell StressNutrients for Health50 mg
- TranquiltyZenium20 mg
- Trans Formers Gummie MultivitaminsQuest · off the market9 mg
- Trans4ormEvlution Nutrition15 mg
- Trans4orm Blue RazEvlution Nutrition15 mg
- TransZenEntheoZen · off the market20 mg
- TravaGenNS NeuroScience25 mg
- Tres Beauty 3Reserveage Nutrition · off the market18 mg