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.

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).

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.

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.

In which products and brands?

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 21 of 256), each with the amount its label prints; an amount far outside what other labels print is marked as a possible slip.

• Arthro-SynDouglas Laboratories100 mg
• ArthroGenxBioGenesis Nutraceuticals · off the market600 mg
• ArthroGenxNutra BioGenesis600 mg
• ArthroSelectMoss Nutrition600 mg
• ArthroSootheDesigns for Health500 mg
• ArthroSoothe SupremeDesigns for Health500 mg
• AS 10 FusionAmeriSciences · off the market25 mg
• AS 10 LifeAmeriSciences · off the market30 mg
• AS 10 LifeNugevity30 mg
• Aspen IGF-1 MaxAspen Antler Research16 mg
• Assassin Raspberry LemonadeAnarchy Labs30 mg
• Assault Blue Arctic RaspberryMusclePharm60 mg
• Assault GrapeMusclePharm60 mg
• Assault Lemon LimeMusclePharm25 mg
• Assault Pineapple MangoMusclePharm25 mg
• Assault Raspberry LemonadeMusclePharm60 mg
• Astra-Vites Fruit FlavorDouglas Laboratories20 mg
• At EaseRedd Remedies8 mg
• At Ease PMRedd Remedies8 mg
• Athlete FormulaNutrina · off the market1,110 mg as transcribed, likely a slip
• Athlete's BCAA Fruit PunchDymatize · off the market20 mg
• Athlete's BCAA WatermelonDymatize · off the market20 mg
• Athlete's Pre Fruit PunchDymatize · off the market30 mg
• Athlete's Pre Orange PineappleDymatize · off the market30 mg
• Athletic Greens Ultimate DailyAthletic Greens20 mg
• Athletic NutrientsPure Encapsulations25 mg
• Athletic Pure PackPure Encapsulations38 mg
• Athletic Recovery Strawberry LemonadeFITAID16 mg
• AtpBioFactor70 mg
• AtpMeehan Formulations35 mg
• ATP CofactorsOptimox500 mg
• ATP Cofactors Vitamins B-2 and B-3Biomicotek500 mg
• ATP Ignite Natural Citrus FlavorXYMOGEN10 mg
• ATP Ignite Natural Mixed Berry FlavorXYMOGEN10 mg
• ATP Ignite Workout Natural Mixed Berry FlavorXYMOGEN · off the market10 mg
• ATP Natural Citrus FlavorAdaptogen Research10 mg
• ATP-Fuel Natural Peppermint Vanilla FlavorVitaMist5 mg
• Attack 3.1 Cassis FlavourBody Attack54 mg
• Attack 3.1 Green Apple FlavourBody Attack54 mg
• AttentionLiquid Health15 mg
• AttentionBodSmith · off the market15 mg
• Attention Fruit FlavorLiquid Health15 mg
• Aved-Digest MultiAnabolic Laboratories · off the market60 mg
• Aved-Eze MultiAnabolic Laboratories · off the market20 mg
• Aved-KidsAnabolic Laboratories · off the market20 mg
• Aved-Kids Natural Berry FlavorAnabolic Laboratories · off the market20 mg
• AVED-MultiAnabolic Laboratories · off the market60 mg
• Aved-Multi Iron FreeAnabolic Laboratories · off the market60 mg
• AVED-Multi SoftgelAnabolic Laboratories · off the market50 mg
• AVED-Prenatal MultiAnabolic Laboratories · off the market20 mg

Where next?

• Check an amount of niacin
• Labels above the upper limit
• All ingredients