PlainVitamins

Niacin 500 mg

by Carlson · tablet or pill · 250 tablets

  • On the market (NIH)
  • UPC 0 88395 02782 6
  • DSLD label 209251
  • Serving 1 tablet
  • 250 servings

Niacin 500 mg by Carlson lists 2 ingredients, 2 with an amount per serving of 1 tablet, such as 500 mg of niacin and 26 mg of calcium. Its current label entered the NIH Dietary Supplement Label Database on November 21, 2019.

What is in Niacin 500 mg?

Each row as the label prints it, per serving of 1 tablet. The capsule beside an amount places it among every product in the NIH database that lists the same ingredient: the bar is the middle half of their amounts, the line in it the median, the whiskers the 10th and 90th percentiles; the green tick is the FDA Daily Value and the red dashed tick the adult upper limit (IOM).

Niacin 500 mg: Supplement Facts rows against the market (DSLD label 209251, January 2026 release)
IngredientAmount% DVAmong products listing it
Niacinas Nicotinic AcidNiacin (Form: as Nicotinic Acid)500 mg3,125%Niacin in Niacin 500 mg against 12,413 products500 mg per serving; the middle half of products list 13.2 mg to 48 mg, the median 20 mg.DV 16 mgUL 35 mg500 mg

Higher than 98% of 12,413 products listing niacin (median 20 mg). 14.3 times the adult UL a day.

Calciumas Dicalcium PhosphateCalcium (Form: from Dicalcium Phosphate)26 mg2%Calcium in Niacin 500 mg against 17,831 products26 mg per serving; the middle half of products list 50 mg to 252 mg, the median 115 mg.DV 1,300 mgUL 2,500 mg26 mg

87% of 17,831 products listing calcium give more (median 115 mg).

Source: NIH ODS Dietary Supplement Label Database, label 209251 (entered November 21, 2019), version 9.4.0. See the label on DSLD. Amounts are what the maker printed; DSLD does not test products. Daily Values: the FDA's Daily Value page.

Is that a lot?

The rows in the top or bottom tenth of the products that list the same ingredient, and any above the adult upper limit at the most servings a day the directions give:

  • At 1 serving a day, the most its directions give, the label lists 500 mg of niacin, 14.3 times the adult Tolerable Upper Intake Level.

The NIH database records one serving a day from the label's directions; its % Daily Values are for adults and children 4 or more years of age. The directions as printed are further down this page.

The Tolerable Upper Intake Level is the most of a nutrient per day, from food, water and supplements together, that is likely to pose no risk for almost all adults (Institute of Medicine, 2011). It does not apply under medical supervision. This page compares labels; it is not medical advice.

Sources: amounts from the DSLD label; Daily Values from 21 CFR 101.9(c)(8)(iv); adult upper limits from the Institute of Medicine's DRI summary tables (2011). How positions are computed.

Which products have the closest formulas?

6 products list the very same ingredients; the nearest amounts come first.

Source: ingredient lists of every product's current label in DSLD (version 9.4.0); similarity weights each shared ingredient by how rare it is.

What does the label say about taking it?

Quoted from the label as DSLD transcribed it: the maker's words, including any claim about what the product does, which the FDA has not evaluated and PlainVitamins does not endorse.

Directions
Directions: Adults: Take one tablet daily at mealtime.
Warnings
Note: Niacin may cause a warm flushing of the skin which may last minutes or hours and often be relieved by drinking 1 or 2 glasses of water.
Warning: Do not take if you are pregnant or lactating.
Do not take if you have low blood pressure without first consulting your physician.
Allergens and what it does not contain
Gluten-free No artificial preservatives

Source: label statements in DSLD label 209251.

What else is on the label?

Other ingredients: Microcrystalline Cellulose, Stearic Acid, Magnesium Stearate, Ethylcellulose, Croscarmellose Sodium, Silicon Dioxide.

How many labels does Niacin 500 mg have?

4 labels are on file under this name since December 23, 2015: other sizes, label designs and reformulations. The current one leads this page.

  1. Label 209251 (current) Entered November 21, 2019 · on the market · 250 tablets · UPC 0 88395 02782 6
  2. Label 209249 Entered November 21, 2019 · on the market · 100 tablets · UPC 0 88395 02781 9
  3. Label 54361 Entered December 23, 2015 · off the market May 3, 2018 · 250 tablets · UPC 0 88395 02782 6
  4. Label 54359 Entered December 23, 2015 · off the market June 14, 2018 · 100 tablets · UPC 0 88395 02781 9

Source: DSLD label entry and market events, version 9.4.0 (labels entered through September 25, 2025).

Who makes it?

The label names Carlson Div. of J.R. Carlson Laboratories, Inc. (distributor), Arlington Heights, IL. All Carlson products.

Where next?