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

• DailyMulti with IronBluebonnet25 mg
• DalivitTaleos Pharma20 mg
• Damage ControlPrimal Blueprint · off the market20 mg
• Dark RageMHP Maximum Human Performance25 mg
• Dark Rage Blue RaspberryMHP Maximum Human Performance25 mg
• Dark Rage Fruit PunchMHP Maximum Human Performance12 mg
• Dark Rage GrapeMHP Maximum Human Performance25 mg
• Day & NightWe Care Distributor · off the market25 mg
• Day 1 and Day 2 NeoLife DetoxNeoLife · off the market8 mg
• Day 1 and Day 2 NeoLife DetoxNeoLife Nutritionals8 mg
• Day 3 NeoLife DetoxNeoLife · off the market8 mg
• Day 3 NeoLife DetoxNeoLife Nutritionals8 mg
• Day Time FormulaABS Laboratories · off the market20 mg
• DayaviteAmella Pharma20 mg
• Daytime EnergyRise-N-Shine30 mg
• DB12 Digestives + Vitamin B12Systemic Formulas Bio Function30 mg
• Death AdderAggressive Labz · off the market40 mg
• Debittered Brewer's Yeast PowderVitamin World · off the market4.8 mg
• Debittered Brewer's Yeast PowderGood 'N Natural · off the market4.8 mg
• Decaf Thermo Igniter 12XGNC Pro Performance AMP20 mg
• Decaf Thermo Igniter 12XGNC AMP Advanced Muscle Performance20 mg
• Deep Cell Matrix Raging OJGoliath Labs75 mg
• Deep SleepRelacore Extra50 mg
• Deer AntlerJustified Laboratories20 mg
• Deer Antler Velvet ExtractCreative Concept Labs20 mg
• Deer Antler Velvet ExtractMaritzMayer Laboratories · off the market2 mg
• Deer Antler Velvet Extract IGF-1Bucked Upin a blend
• Deer Antler Velvet SprayCreative Bioscience · off the marketin a blend
• Deer Antler Velvet Spray 1234Creative Bioscience · off the marketin a blend
• Deer Antler Velvet With IGF-1Infiniti Creations20 mg
• Defense Peak MultivitaminInner Armour Sports Nutrition32.14 mg
• Delicious Protein Delicious Banana ShakeGiant Sports0.15 mg as transcribed, likely a slip
• Delicious Protein Delicious Cookies and Cream ShakeGiant Sports0.1 mg as transcribed, likely a slip
• Delicious Protein Delicious Peanut Butter Chocolate ShakeGiant Sports0.9 mg
• Delicious Protein Delicious Vanilla ShakeGiant Sports0.4 mg
• Delight Chocolate DelightFitMiss0.24 mg
• Demon Dust DevilmintInsane Labz10 mg
• Dentra-VitaDentra Perfect · off the market20 mg
• Derma Care With Proprietary Omega BlendIntegrative Therapeutics66 mg
• Derma Klear Akne-ZymeEnzymatic Therapy · off the market10 mg
• Derma Klear Akne-ZymeNature's Way10 mg
• Derma-DZahler30 mg
• Derma-VitesMBi Nutraceuticals100 mg
• Dermal Repair ComplexBeverly Hills MD50 mg
• Dethroner Pre-Workout Pineapple Mango CoconutEkkovision40 mg
• Detonator X Preworkout Strawberry LimeadeXLSN Xcel Sports Nutrition · off the market50 mg
• Detonator-X Peach MadnessXcel Sports Nutrition · off the market50 mg
• Detonator-X Pineapple ExplosionXcel Sports Nutrition · off the market50 mg
• Detonator-X Strawberry LimeadeXcel Sports Nutrition · off the market50 mg
• DetoxEPX Body · off the marketin a blend

Where next?

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