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 99 of 256), each with the amount its label prints; an amount far outside what other labels print is marked as a possible slip.
- Hot & SkinnyAngry Supplements20 mg
- Hottie Pink LemonadeLecheek Nutrition · off the market10 mg
- HQ Heart EnergySystemic Formulas Bio Function9.1 mg
- HS Extreme Energy DrinkAmeriSciences · off the market17.5 mg
- Hsn-23LEAN Nutraceuticals20 mg
- Huge MultiHuge Supplements · off the market82 mg
- Huge MultiHuge Nutrition82 mg
- HumaProALR Industries9 mg
- HumaPro Exotic Peach MangoALR Industries9 mg
- HumaPro Exotic Peach Mango FlavorALR Industries9 mg
- Humoloid 100,000 NGGoliath Labs0.001 mg as transcribed, likely a slip
- Hy-B Caps 100 mgtnvitamins100 mg
- Hybrid N.O.MusclePharm50 mg as transcribed, likely a slip
- Hybrid N.O. Cherry LimeadeMusclePharm60 mg
- Hybrid N.O. Fruit PunchMusclePharm60 mg
- Hyde Extreme Blue Razz BlitzPS ProSupps · off the market25 mg
- Hyde NitroX Blue Razz PopsiclePS ProSupps25 mg
- Hyde NitroX Lollipop PunchPS ProSupps25 mg
- Hyde NitroX Peachy Oh!PS ProSupps25 mg
- Hyde NitroX Red Fish CandyPS ProSupps25 mg
- Hyde NitroX Sour Green ApplePS ProSupps25 mg
- Hyde NitroX What-O-MelonPS ProSupps25 mg
- Hyde Pre Workout Blue RaspberryPS ProSupps30 mg
- Hyde Pre Workout WatermelonPS ProSupps30 mg
- Hyde Test Surge Cherry LimeadePS ProSupps · off the market25 mg
- Hyde Test Surge Sour WatermelonPS ProSupps · off the market25 mg
- Hyde Xtreme Blue Razz BlitzPS ProSupps25 mg
- Hyde Xtreme Cherry PopsiclePS ProSupps25 mg
- Hyde Xtreme Cotton CandyPS ProSupps25 mg
- Hyde Xtreme Pixie DustPS ProSupps25 mg
- Hyde Xtreme Sour Green ApplePS ProSupps25 mg
- Hyde Xtreme Sucker PunchPS ProSupps25 mg
- Hyde Xtreme Watermelon RushPS ProSupps25 mg
- Hydr8 GrapePure Advantage20 mg
- Hydrate Tangy Tangerine FreezeH2O Overdrive · off the market2 mg
- Hydration + Collagen Lemon LimeVital Proteins · off the market23 mg
- Hydration + Collagen Tropical BlastVital Proteins · off the market23 mg
- Hydration Multiplier Acai BerryLiquid I.V.in a blend
- Hydration Multiplier Lemon LimeLiquid I.V.22.8 mg
- Hydration+ Blueberry Acai FlavoredMRM Nutrition16 mg
- Hydration+ Orange Mango FlavoredMRM Nutrition16 mg
- HydraulicAxe & Sledge Supplements12.5 mg
- Hydraulic Deadlifts & Gummy BearsAxe & Sledge Supplements12.5 mg
- Hydraulic HWMFAxe & Sledge Supplements37.5 mg
- Hydraulic ICEE Blue RaspberryAxe & Sledge Supplements37.5 mg
- Hydraulic ICEE CherryAxe & Sledge Supplements37.5 mg
- Hydraulic Lemon LimeAxe & Sledge Supplements37.5 mg
- Hydraulic Scorpion VenomAxe & Sledge Supplements37.5 mg
- Hydraulic Shark Bite Orange Mango FlavoredAxe & Sledge Supplements37.5 mg
- Hydraulic Strawberry LemonadeAxe & Sledge Supplements37.5 mg