PlainVitamins

L-Glutamine 1000 mg

by GNC · other (e.g. tea bag) · 100 vegetarian caplets

  • On the market (NIH)
  • UPC 0 48107 21130 1
  • DSLD label 227853
  • Serving 1 caplet

L-Glutamine 1000 mg by GNC lists 2 ingredients, 2 with an amount per serving of 1 caplet, such as 81 mg of calcium and 1,000 mg of L-glutamine. Its current label entered the NIH Dietary Supplement Label Database on July 23, 2020.

What is in L-Glutamine 1000 mg?

Each row as the label prints it, per serving of 1 caplet. 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).

L-Glutamine 1000 mg: Supplement Facts rows against the market (DSLD label 227853, January 2026 release)
IngredientAmount% DVAmong products listing it
Calcium81 mg6%Calcium in L-Glutamine 1000 mg against 17,831 products81 mg per serving; the middle half of products list 50 mg to 252 mg, the median 115 mg.DV 1,300 mgUL 2,500 mg81 mg

62% of 17,831 products listing calcium give more (median 115 mg). Per day at the most servings: 162 mg.

L-Glutamine1,000 mgGlutamine in L-Glutamine 1000 mg against 1,850 products1 g per serving; the middle half of products list 0.356 g to 3 g, the median 1 g.1 g

48% of 1,850 products listing glutamine give more (median 1 g). Per day at the most servings: 2 g.

Source: NIH ODS Dietary Supplement Label Database, label 227853 (entered July 23, 2020), 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?

Every amount on this label with a position sits within the middle 80% of the products that list the same ingredient.

The NIH database records 1 to 2 servings 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?

The products whose ingredient lists overlap most with L-Glutamine 1000 mg's, rare ingredients counting for more.

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: As a dietary supplement, take one caplet one to or two times daily, an hour before meals or on an empty stomach.
Warnings
Keep out of reach of children.
Allergens and what it does not contain
No sugar, no artificial colors, no artificial flavors, no preservatives, sodium free, no wheat, gluten free, no corn, no soy, no dairy. GF Gluten Free
Storage
Store in a cool, dry place.

Source: label statements in DSLD label 227853.

What else is on the label?

Other ingredients: Dicalcium Phosphate, Povidone, Croscarmellose Sodium, Silicon Dioxide, Microcrystalline Cellulose, Stearic Acid, Calcium Silicate, Magnesium Stearate, Ethylcellulose, Carnauba wax, Triacetin, Polyethylene Glycol, Oleic Acid, Diacetylated Monoglycerides.

Seals and symbols as the label prints them (the maker's; a certifier's own list confirms a seal): Ko Kosher Service.

How many labels does L-Glutamine 1000 mg have?

4 labels are on file under this name since October 26, 2011: other sizes, label designs and reformulations. The current one leads this page.

  1. Label 227853 (current) Entered July 23, 2020 · on the market · 100 vegetarian caplets · UPC 0 48107 21130 1
  2. Label 74455 Entered June 23, 2017 · off the market December 13, 2022 · 100 vegetarian caplets · UPC 0 48107 12247 8
  3. Label 63652 Entered August 24, 2016 · off the market May 11, 2017 · 100 vegetarian caplets · UPC 0 48107 12247 8
  4. Label 1384 Entered October 26, 2011 · off the market December 13, 2022 · 100 vegetarian caplets · UPC 0 48107 06145 6

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

Who makes it?

The label names General Nutrition Corporation (distributor), Pittsburgh, PA. All GNC products.

Where next?