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 85 of 256), each with the amount its label prints; an amount far outside what other labels print is marked as a possible slip.
- Full FocusNeurobiologix400 mg
- Full Of Energy Senior MultiVitaCeutical Labs · off the market20 mg
- Full Spectrum B with Vitamin CNature's Blend · off the market20 mg
- Full Spectrum Daily MultipleHealthy Choice Naturals50 mg
- Full Spectrum with Vitamin CNature's Blend20 mg
- Full Throttle Energy DrinkFuzein a blend
- Fully Active B ComplexDoctor's Best50 mg
- Fully Active B Complex with QuatrefolicDoctor's Best50 mg
- FulviMaxEpigenetic Labs20 mg
- FulviteaGet Healthy Again15 mg
- Fun PlayKidzPlay15 mg
- FusionGenesis Pure0.085 mg as transcribed, likely a slip
- Fusion PlusUS Pharmaceutical Corporation10 mg
- G Fuel Blood OrangeGamma Labs15 mg
- G Fuel Blue IceGamma Labs15 mg
- G Fuel Bubble GumGamma Labs15 mg
- G Fuel CoconutGamma Labs15 mg
- G Fuel FazeberryGamma Labs15 mg
- G Fuel Fruit PunchGamma Labs15 mg
- G Fuel GrapeGamma Labs15 mg
- G Fuel Green AppleGamma Labs15 mg
- G Fuel Lemon LimeGamma Labs15 mg
- G Fuel LemonadeGamma Labs15 mg
- G Fuel Mystery FlavorGamma Labs15 mg
- G Fuel OrangeGamma Labs20 mg
- G Fuel Peach MangoGamma Labs15 mg
- G Fuel PewDiePieGamma Labs15 mg
- G Fuel PineappleGamma Labs15 mg
- G Fuel Pink LemonadeGamma Labs15 mg
- G Fuel Strawberry KiwiGamma Labs15 mg
- G Fuel Tropical RainGamma Labs15 mg
- G Fuel WatermelonGamma Labs15 mg
- G-ImmunityCellusyn Laboratories · off the market20 mg
- G.T.F. Chromium 200 mcgHighland Laboratories10 mg
- GABA ComplexGood 'N Natural · off the market400 mg
- GABA L-Theanine Stress B Lozenge Mango TangerineKAL4 mg
- GABA L-Theanine Stress B Lozenge Natural Mango Tangerine FlavorKAL · off the market4 mg
- GABA PlusVitamin World400 mg
- Gaba Plus 100 mgEurovital Nutraceuticals400 mg
- Gaba Plus 200 mgEurovital Nutraceuticals400 mg
- GABA RelaxerCountry Life200 mg
- GABA with Niacinamide & InositolKirkman10 mg
- Gain Fast 3100 Banana-Split ShakeUniversal19 mg
- Gain Fast 3100 Chocolate ShakeUniversal19 mg
- Gain Fast 3100 Cookies & CreamUniversal · off the market19 mg
- Gain Fast 3100 Pina-Colada ShakeUniversal19 mg
- Gain Fast 3100 Strawberry ShakeUniversal Nutrition · off the market19 mg
- Gain Fast 3100 Strawberry ShakeUniversal19 mg
- Gain Fast 3100 Vanilla ShakeUniversal19 mg
- Gain+GirlSupps0.5 mg