L-Glutamine 550 mg
by Lidtke · capsule · 180 vegan capsules
- On the market (NIH)
- UPC 6 30610 00392 6
- DSLD label 261011
- Serving 1 capsule
- 180 servings
L-Glutamine 550 mg by Lidtke lists one ingredient: 550 mg of L-glutamine per serving of 1 capsule. Its current label entered the NIH Dietary Supplement Label Database on February 23, 2022.
What is in L-Glutamine 550 mg?
Each row as the label prints it, per serving of 1 capsule. 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 |
|---|---|---|---|
| L-GlutamineJP, USP, EP, As certified by the manufacturer. | 550 mg | 62% of 1,850 products listing glutamine give more (median 1 g). |
Source: NIH ODS Dietary Supplement Label Database, label 261011 (entered February 23, 2022), version 9.4.0. See the label on DSLD or its label image (PDF). 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 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.
- L-GlutamineSpring Valley same ingredients
- L-Glutamine 500GNC · off the market same ingredients
- L-Glutamine 500 mgVitaCeutical Labs same ingredients
- L-Glutamine 500 mgVitabase same ingredients
- L-GlutamineBronson · off the market same ingredients
- L-Glutamine 500 mgGood 'N Natural · off the market 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 (Adults): one (1) capsule a few minutes before each meal, or as directed by a health-care professional.
- Warnings
- Warning: Keep out of reach of children.
- If you are pregnant, lactating, taking any medications or have a medical condition, consult your doctor.
- Discontinue use if adverse reaction occurs. Do not use if seal is damaged or missing.
- Adverse events may be reported above.
- Allergens and what it does not contain
- Non-GMO...no genetically-modified organisms
- No fillers or flow agents. No added gluten, yeast, wheat, corn, soy, rice, milk, dairy, eggs, tree nuts, peanuts, fish, shellfish, salt, sugar, animal derivatives, artificial color or flavor. Non-GMO.
- Storage
- Keep lid tightly closed. Keep in a cool, dry place.
Source: label statements in DSLD label 261011.
What else is on the label?
Other ingredients: Vegetarian Capsules.
Seals and symbols as the label prints them (the maker's; a certifier's own list confirms a seal): GMP.
How many labels does L-Glutamine 550 mg have?
3 labels are on file under this name since March 24, 2020: other sizes, label designs and reformulations. The current one leads this page.
- Label 261011 (current) Entered February 23, 2022 · on the market · 180 vegan capsules · UPC 6 30610 00392 6
- Label 257269 Entered November 19, 2021 · on the market · 90 vegan capsules · UPC 6 30610 00391 9
- Label 215201 Entered March 24, 2020 · off the market July 16, 2021 · 180 vegetarian capsules · UPC 6 30610 00392 6
DSLD also links this label to: Apidren Super Shredded (image 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 Lidtke Technologies (manufacturer, distributor), Chandler, AZ. All Lidtke products.