Perfect L-Glutamine
by Nature's Best · powder · 10.5 oz.
- Off the market since August 2024 (NIH)
- UPC 0 89094 02098 9
- DSLD label 58822
- Serving 5 g (1 rounded tsp)
- 60 servings
Perfect L-Glutamine by Nature's Best lists 2 ingredients, 2 with an amount per serving of 5 g, such as 4.6 g of L-glutamine and 400 mg of lysophosphatidyl choline enriched lecithin. Its current label entered the NIH Dietary Supplement Label Database on April 22, 2016.
What is in Perfect L-Glutamine?
Each row as the label prints it, per serving of 5 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 |
|---|---|---|---|
| L-Glutamine | 4.6 g | Higher than 82% of 1,850 products listing glutamine (median 1 g). Per day at the most servings: 9.2 g. | |
| Lysophosphatidyl Choline enriched Lecithin | 400 mg | Higher than 57% of 804 products listing lecithin (median 200 mg). Per day at the most servings: 800 mg. |
Source: NIH ODS Dietary Supplement Label Database, label 58822 (entered April 22, 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?
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?
1 product lists the very same ingredients; the nearest amounts come first.
- Glutamine-SR UnflavoredMHP Maximum Human Performance same ingredients
- Lecithin 1200 mgBasic Organics 1 shared, 55% alike
- Lecithin 1200 mg21st Century 1 shared, 55% alike
- Soya Lecithin 400 mgEqualine 1 shared, 55% alike
- Lecithin 500GNC 1 shared, 55% alike
- Lecithin 1200 mgSimplySupplements 1 shared, 55% alike
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 mix 1 rounded teaspoonful (5g) with your favorite beverage, 1 to 2 times daily 1 hour before a workout.
- Warnings
- This product is produced in a facility with soy, dairy, egg and wheat ingredients, peanuts and tree nuts.
- KEEP OUT OF REACH OF CHILDREN.
- Allergens and what it does not contain
- This product is gluten-free.
- Storage
- Keep tightly closed in a dry place, do not expose to excessive heat.
Source: label statements in DSLD label 58822.
What else is on the label?
Other ingredients: L-Glutamine, Lysophosphatidyl Choline enriched Lecithin.
How many labels does Perfect L-Glutamine have?
One label is on file, entered on April 22, 2016.
- Label 58822 (current) Entered April 22, 2016 · off the market August 15, 2024 · 10.5 oz. · UPC 0 89094 02098 9
Source: DSLD label entry and market events, version 9.4.0 (labels entered through September 25, 2025).
Who makes it?
The label names Nature's Best, Inc. (distributor), Hauppauge, NY. All Nature's Best products.