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 201 of 256), each with the amount its label prints; an amount far outside what other labels print is marked as a possible slip.
- SizeOn Arctic Lemon IceGaspari Nutrition · off the market50 mg
- SizeOn Concord GrapeGaspari Nutrition50 mg
- SizeOn Fruit PunchGaspari Nutrition50 mg
- SizeOn Grape CoolerGaspari Nutrition50 mg
- SizeOn Lemon IceGaspari Nutrition50 mg
- SizeOn Orange CoolerGaspari Nutrition50 mg
- SizeOn Wild Berry PunchGaspari Nutrition · off the market50 mg
- SizeOn Wildberry PunchGaspari Nutrition50 mg
- SkinNutrafol150 mg
- Skin CareAmvilab500 mg
- Skin ComplexHigher Nature Aeterna Men4 mg
- Skin DisciplineZitSticka25 mg
- Skin Eternal PlusSource Naturals SE Skin Eternal35 mg
- Skin Eternal PlusSource Naturals35 mg
- Skin FactorsMichael's Naturopathic Programs150 mg
- Skin FactorsMNP Michael's Naturopathic Programs · off the market150 mg
- Skin FactorsMH Michael's Health Naturopathic Programs150 mg
- Skin Hair Nails SupplementKala Health1.4 mg
- Skin SupportNature's Plus AgeLoss · off the market50 mg
- Skin SupportHigher Nature5 mg
- Skin Support FormulaHigher Nature30 mg
- Skin Support PackDouglas Laboratories47.5 mg
- Skin, Hair & Nail FormulaWonder Laboratories17 mg
- Skin, Hair & Nail FormulaDC17 mg
- Skin, Hair & NailsGood 'N Natural · off the market25 mg
- Skinny Gut Ultimate Shake Natural Chocolate FlavorRenew Life6 mg
- Skinny Gut Ultimate Shake Natural Vanilla FlavorRenew Life6 mg
- Skinny Mini Shake Double Chocolate Fudge CrunchNature's Plus · off the marketin a blend
- SkinnyStix Berry FusionZantrex6 mg
- SkinRestoreHerbs SRA64 mg
- SkinViteZen Nutrients100 mg
- SleepAmeriSciences · off the market5 mg
- SleepmyDNAhealth150 mg
- SleepNugevity5 mg
- Sleep AidDr. Berg's · off the market18 mg
- Sleep AidDr. Berg18 mg
- Sleep Aid Vegan FormulaDr. Berg18 mg
- Sleep All Nite NaturalsSeniorLife Health5 mg
- Sleep AnswerDoctors' Preferred3.3 mg
- Sleep Blueberry LavenderLiquid I.V.50 mg
- Sleep BurnBuilt By Nature1 mg
- Sleep FactorsMichael's Naturopathic Programs · off the market10 mg
- Sleep Formula 39Harmonix · off the market10 mg
- Sleep Gummies BlueberryVital Proteins · off the market50 mg
- Sleep Melatonin-FreeVital Performance · off the market6 mg
- Sleep Orange VanillaVital Performance7 mg
- Sleep Reliefnbi6 mg
- Sleep Shot DreamberryRapidCBD5 mg
- Sleep SupportSaveWorldHealth.com · off the market50 mg
- Sleep SupportYuen Diing Enterprise16 mg