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

• PRE Watermelon BlueberryVital Performance8 mg
• PRE WatermleonBowmar Nutrition16 mg
• Pre WorkoutDyna Storm Nutrition · off the market16 mg
• Pre Workout Blue RaspberryHard Rhino30 mg
• PRE Yuzu ClementineVital Performance8 mg
• Pre Zero-Stim Aussie AppleStaunch · off the market75 mg
• Pre Zero-Stim Blue 'Baz' BerryStaunch · off the market75 mg
• Pre Zero-Stim Peach MangoStaunch · off the market75 mg
• Pre Zero-Stim Pina KoalaStaunch · off the market75 mg
• Pre-Alpha Blue RaspberryIMSOALPHA20 mg
• Pre-Alpha Fruit PunchIMSOALPHA35 mg
• Pre-Alpha LemonadeIMSOALPHA35 mg
• Pre-Game Formula Blue RaspberryProven4 Sport P410 mg
• Pre-Game Formula Cherry LimeadeProven4 Sport P410 mg
• Pre-Game Formula Fruit PunchProven4 Sport P410 mg
• Pre-Game Formula WatermelonProven4 Sport P410 mg
• Pre-Gro Arctic Blue RazziSatori30 mg
• Pre-Gro Delicious Fruit PunchiSatori15 mg
• Pre-Gro Delicious Lemon Drop SupremeiSatori30 mg
• Pre-Gro Delicious Watermelon RushiSatori15 mg
• Pre-Gro Max Blue Razz Snow ConeiSatori7.5 mg
• Pre-Gro Max Mixed Berry Fruit SmashiSatori15 mg
• Pre-Kaged Berry BlastKaged Muscle · off the market30 mg
• Pre-Kaged Berry BlastKaged30 mg
• Pre-Kaged Cherry BombKaged30 mg
• Pre-Kaged Elite Fruit PunchKaged30 mg
• Pre-Kaged Elite Glacier GrapeKaged30 mg
• Pre-Kaged Elite Orange MangoKaged30 mg
• Pre-Kaged Elite Strawberry LemonadeKaged30 mg
• Pre-Kaged Fruit PunchKaged Muscle · off the market30 mg
• Pre-Kaged Fruit PunchKaged30 mg
• Pre-Kaged GrapeKaged30 mg
• Pre-Kaged Krisp AppleKaged Muscle · off the market30 mg
• Pre-Kaged Krisp AppleKaged30 mg
• Pre-Kaged Orange KrushKaged Muscle · off the market30 mg
• Pre-Kaged Orange KrushKaged30 mg
• Pre-Kaged Pink LemonadeKaged Muscle · off the market30 mg
• Pre-Kaged Pink LemonadeKaged30 mg
• Pre-Kaged Stim-Free Cherry BombKaged30 mg
• Pre-Kaged Stim-Free Fruit PunchKaged30 mg
• Pre-NatalViva Vitamins100 mg
• Pre-NatalHer Own10 mg
• Pre-NatalPriority One Nutritional Supplements30 mg
• Pre-Natal FormulaPhysioLogics · off the market20 mg
• Pre-Natal Multi-Vitamin Multi-Mineral SupplementHome Health16 mg
• Pre-Natal Multivitamin With DHAProtocol For Life Balance13 mg
• Pre-Natal PacksBiotics Research Corporation100 mg
• Pre-Natural ComplexVitamin World20 mg
• Pre-OpSurgery Vitamin · off the market20 mg
• Pre-Op Healing Optimization FormulaHealFast10 mg

Where next?

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