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 192 of 256), each with the amount its label prints; an amount far outside what other labels print is marked as a possible slip.
- Purple InTrain Purple Raspberry FlavorControlled Labs10 mg
- Purple Softgel CapsuleExeltis USA15 mg
- Purple Wraath Juicy GrapeControlled Labs10 mg
- Purple Wraath Juicy Grape FlavorControlled Labs10 mg
- PurThermo Fat BurnerJuggernaut Nutrition · off the marketin a blend
- Push Berry BlastMusclegen Performance Nutrition20 mg
- Pyro Stim 7Metis Nutrition1 mg
- QPretoxHerbal Clean3 mg
- Quadra Cuts CompetitionMM Sports Nutrition40 mg
- Qualia LifeQualia125 mg
- Qualia MindNeurohacker Collective50 mg
- Qualia Mind Caffeine FreeNeurohacker Collective50 mg
- Qualia Nootropic Energy Triple Berry FlavorQualia25 mg
- QuantumAB Combination · off the market17 mg
- Quantum 2015Combine2 · off the market10 mg
- Quantum Nutritional FlakesQuantum Nutrition Labs28 mg
- Quantum-BStayWell50 mg
- Quantum-BHealth Thru Nutrition Naturally · off the market50 mg
- Quantum-X Gummy Bearproject#112.5 mg
- Quantum-X Orange Mangoproject#112.5 mg
- Queen BeeLove Me30 mg
- QuFlora FE Grape FlavorCarwin Pharmaceutical Associates20 mg
- Quick B-12 Energy Burst 1000 mcgSuperior Source1 mg
- Quick Dissolve Super B-Complex Wild Berry FlavorFinest Nutrition20 mg
- QuickmassALLMAX21 mg
- QUICKMASS ChocolateALLMAX5 mg
- QUICKMASS Chocolate Peanut ButterALLMAX5 mg
- QUICKMASS Cookies & CreamALLMAX26 mg
- QUICKMASS Strawberry-BananaALLMAX20 mg
- QUICKMASS VanillaALLMAX5 mg
- Quiet SleepLife Extension · off the market73.5 mg
- Quiet Sleep Melatonin 3 mgLife Extension73.5 mg
- Quiet Sleep Melatonin 5 mgLife Extension73.5 mg
- Quintabs M with IronFreeda100 mg
- QuintessenceNRRon Teeguarden's Dragon Herbs200 mg
- Qultured Max Stress BQuantum Nutrition Labs30 mg
- R4ytExakta2.5 mg
- Racing Fruit PunchImage Sports25 mg
- Racing Raspberry LemonadeImage Sports25 mg
- Racing WatermelonImage Sports25 mg
- Radiance BoostNutri-Rich30 mg
- Radiance WithinLumiday18 mg
- RadiantNature's Origin · off the market2 mg
- Radiant GlowNutri-Rich30 mg
- Rage Extreme Pre-Workout Pineapple SplashMuscle Miltia40 mg
- Rage XXX Strawberry KiwiCenturion Labz30 mg
- Rampage Fruit PunchEnraged · off the market20 mg
- Rampage Fruit PunchEN Enraged · off the market20 mg
- Rampage WatermelonEnraged · off the market20 mg
- Rampage WatermelonEN Enraged · off the market20 mg