L-Glutamine Unflavored
by MET-Rx · powder · 0.88 lb
- On the market (NIH)
- UPC 7 86560 36729 5
- DSLD label 66281
- Serving 6 g (1 scoop)
- 167 servings
L-Glutamine Unflavored by MET-Rx lists one ingredient: 6,000 mg of L-glutamine per serving of 6 g. Its current label entered the NIH Dietary Supplement Label Database on November 21, 2016.
What is in L-Glutamine Unflavored?
Each row as the label prints it, per serving of 6 g. 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 |
|---|---|---|---|
| Calories | 25 Calories | ||
| L-GlutamineL-Glutamine Note: 6 g | 6,000 mg | Higher than 96% of 1,850 products listing glutamine (median 1 g). Per day at the most servings: 12 g. |
Source: NIH ODS Dietary Supplement Label Database, label 66281 (entered November 21, 2016), 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 6 g of L-glutamine (filed by NIH under glutamine) is higher than 96% of the 1,850 glutamine products that print an amount; 50 list more.
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?
6 products list the very same ingredients; the nearest amounts come first.
- L-GlutamineMET-Rx · off the market same ingredients
- L-Glutamine PowderMET-Rx · off the market same ingredients
- Free Form Glutamine UnflavoredMuscle Feast same ingredients
- GlutamineTapout Sports Nutrition same ingredients
- L-GlutamineInterActive Nutrition · off the market same ingredients
- L-Glutamine PowderGNC Pro Performance 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
- Directions: For adults, mix one (1) rounded scoop (6 g) into 4-8 ounces of water or your favorite beverage one to two times daily. On workout days, consume two (2) servings immediately after exercise.
- POST WORKOUT For maximum benefits on workout days, consume two (2) servings immediately after exercise.
- Warnings
- WARNING: If you are pregnant, nursing, taking any medications or have any medical condition, consult your doctor before use.
- Discontinue use and consult your doctor if any adverse reactions occur.
- Not intended for use by persons under the age of 18.
- KEEP OUT OF REACH OF CHILDREN.
- TAMPER RESISTANT: DO NOT USE IF SEAL UNDER CAP IS BROKEN OR MISSING.
- As a reminder, discuss the supplements and medications you take with your health care providers.
- Allergens and what it does not contain
- No Artificial Sweeteners, Flavors or Colors
- Storage
- STORE AT ROOM TEMPERATURE AND AVOID EXCESSIVE HEAT.
Source: label statements in DSLD label 66281.
How many labels does L-Glutamine Unflavored have?
2 labels are on file under this name since November 21, 2016: other sizes, label designs and reformulations. The current one leads this page.
- Label 66281 (current) Entered November 21, 2016 · on the market · 0.88 lb · UPC 7 86560 36729 5
- Label 66280 Entered November 21, 2016 · on the market · 2.2 lb · UPC 7 86560 36725 7
DSLD also links this label to: L-Glutamine Powder (image difference, same product), L-Glutamine Powder (package size difference, same product), L-Glutamine Powder (package size difference, same product), L-Glutamine Powder (image difference, same product), L-Glutamine Powder (package size difference, same product).
Source: DSLD label entry and market events, version 9.4.0 (labels entered through September 25, 2025).
Who makes it?
The label names MET-Rx Nutrition, Inc. (distributor), Boca Raton, FL. All MET-Rx products.