NAG 500 mg
by SuperSmart · capsule · 90 vegetarian capsules
- On the market (NIH)
- DSLD label 250238
- Serving 3 capsules
- 30 servings
NAG 500 mg by SuperSmart lists one ingredient: 1,500 mg of N-acetyl glucosamine per serving of 3 capsules. Its current label entered the NIH Dietary Supplement Label Database on May 22, 2021.
What is in NAG 500 mg?
Each row as the label prints it, per serving of 3 capsules. 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).
| Ingredient | Amount | % DV | Among products listing it |
|---|---|---|---|
| N-Acetyl Glucosamine | 1,500 mg | Higher than 96% of 148 products listing N-acetyl glucosamine (median 250 mg). |
Source: NIH ODS Dietary Supplement Label Database, label 250238 (entered May 22, 2021), 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:
- Its 1,500 mg of N-acetyl glucosamine is higher than 96% of the 148 N-acetyl glucosamine products that print an amount; 4 list more.
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.
- NAG 1500 mgSuperSmart same ingredients
- Ultimate GlucosamineWellesley Therapeutics same ingredients
- VillicoteWellesley Therapeutics same ingredients
- N-A-G 750 mgJarrow Formulas · off the market same ingredients
- N-Acetyl D-Glucosamine 750 mgSwanson Ultra · off the market same ingredients
- N-Acetyl D-Glucosamine 750 mgSwanson same ingredients
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
- Recommended use: Adults. Take three vegetarian capsules per day (one with each meal).
- Warnings
- Precautions: Do not take if you have an allergy to shellfish.
- Do not exceed the recommended daily dose. This product is a nutritional supplement and should not replace a varied, balanced diet.
- Keep out of children's reach.
- As with any nutritional supplement, you should consult a health professional before taking this product if you are pregnant, breastfeeding or have a health problem.
- Storage
- Store away from direct light, heat and humidity.
Source: label statements in DSLD label 250238.
What else is on the label?
Other ingredients: Acacia Gum, White Rice Bran.
How many labels does NAG 500 mg have?
2 labels are on file under this name since May 22, 2020: other sizes, label designs and reformulations. The current one leads this page.
- Label 250238 (current) Entered May 22, 2021 · on the market · 90 vegetarian capsules
- Label 221475 Entered May 22, 2020 · off the market April 28, 2021 · 90 vegetarian capsules
Source: DSLD label entry and market events, version 9.4.0 (labels entered through September 25, 2025).
Who makes it?
The label names SN Worldwide Unipessoal, LDA (distributor), Funchal, Portugal. All SuperSmart products.