Sports nutrition · MET-Rx
L-Glutamine Unflavored
Why MET-Rx l-glutamine?
- 6000 mg l-glutamine per serving
- No Artificial Sweeteners, Flavors or Colors
From the label’s panel and printed marks — not its marketing.
Sold as food, not medicine — no regulator checked that it works
Per serving · 1 scoop (6 g)
At a glance
From the label as printed · NIH DSLD
Protein powder
Per serving6000 mg l-glutamine
167 servings per container
On workout days, consume two (2) servings immediately after exercise.
One serving: 1 scoop (6 g)
Full directions ↓WARNING: If you are pregnant, nursing, taking any medications or have any medical condition, consult your doctor before use.
All warnings ↓No third-party testing mark on the label
Marks like NSF Certified for Sport or Informed Sport mean batches are tested for banned substances. Their absence does not mean a product is contaminated — only that nobody independent has said it isn’t.
- Sports nutrition — claims are the manufacturer’s
- No Artificial Sweeteners, Flavors or Colors
- Adult (18 - 50 Years)
Supplement Facts
Supplement Facts
Serving size 1 scoop (6 g)
Servings per container 167
| Amount per serving | % DV | |
|---|---|---|
| Calories | 25 kcal | † |
| L-Glutamine | 6000 mg | † |
† Daily Value not established.
Transcribed from the label by the NIH Office of Dietary Supplements. What a label says is not independently verified. See the original label
How to take it
- 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.
The manufacturer’s directions, from the label.
Warnings on the label
- 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.
What no one has checked
Contents are declared by the manufacturer and are not verified by a regulator. Independent testing has repeatedly found amounts that differ from the label, and products that contain substances banned in sport. Third-party certification, where a product has it, is shown on this page.
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Details
| Brand | MET-Rx |
|---|---|
| UPC | 7 86560 36729 5 |
| NIH label ID | 66281 |
| Label recorded | 2016-11-21 |
Source: Dietary Supplement Label Database · NIH Office of Dietary Supplements · retrieved 2026-09-21 · not reviewed by a nutrition professional