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

• Life Without IronShaklee130 mg
• Life's EnergyLife's Fortune25 mg
• Life's Essentials PlusVitabase50 mg
• Life's VitalityKLEENIQ · off the market10 mg as transcribed, likely a slip
• Life's VitalityVitalabs10 mg
• Life's Vitality Multi Vitamin/Mineral ComplexLee Haney's Nutritional Support Systems10 mg
• LifeEssencePure Essence Labs100 mg
• LifeEssencePure Essence100 mg
• LifeEssence MenPure Essence100 mg
• LifeEssence Powder Lemon-Lime FlavorPure Essence80 mg
• LifeEssence WomenPure Essence · off the market100 mg
• LifeGems JuniorGematria11 mg
• LifePakPharmanex · off the market17.5 mg
• LifePak Anti-AgingPharmanex · off the market17.5 mg
• LifePak NanoPharmanex · off the market17.5 mg
• LifePak PreNatalPharmanex · off the market20 mg
• LifePak PrimePharmanex · off the market20 mg
• LifePak TeenPharmanex · off the market20 mg
• LifePak WomenPharmanex · off the market20 mg
• LiftLife Priority75 mg
• Lift CapsLife Priority75 mg
• Liftoff Blackberry SparkHerbalife 24 · off the market20 mg
• Liftoff Blackberry SparkHerbalife2420 mg
• Liftoff Ignite-Me OrangeHerbalife · off the market20 mg
• Liftoff Ignite-Me OrangeHerbalife Nutrition20 mg
• Liftoff Lemon Cola KickHerbalife · off the market20 mg
• Liftoff Lemon-Lime BlastHerbalife · off the market20 mg
• Liftoff Lemon-Lime BlastHerbalife Nutrition20 mg
• Liftoff Pineapple PushHerbalife 24 · off the market20 mg
• Liftoff Pineapple PushHerbalife2420 mg
• Liftoff Pomegranate-Berry BurstHerbalife · off the market20 mg
• Liftoff Pomegranate-Berry BurstHerbalife Nutrition20 mg
• Liftoff Tropical Fruit ForceHerbalife20 mg
• Liftoff Tropical Fruit ForceHerbalife Nutrition20 mg
• Limbic Balance Evening FormulaPacific BioLogic12 mg
• Limitless Focus Cognitive SupportNutriRise20 mg
• Limitless MindLean Factor40 mg
• Lineaslim 7 Nutrient ConcentrateApax USAin a blend
• Lion's Mane PlusOregon's Wild Harvest1.8 mg
• LipacorBronson · off the market125 mg
• LipacorBronson Laboratories250 mg
• LipexDouglas Laboratories10 mg
• LipiControlVitamin Research Products334 mg
• Lipid BalancePL Progressive Laboratories · off the market460 mg
• Lipid BalanceProgressive Professional from Progressive Laboratories460 mg
• Lipid ResultsPhysician's Signature200 mg
• LipiTonicKaruna100 mg
• Lipo 100 HardcoreBody Attack54 mg
• Lipo 100 Wild Berry FlavourBody Attack Sports Nutrition2.4 mg
• Lipo BurnRM Red Mountain Weight Loss50 mg

Where next?

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