L-Ornithine Powder
by Source Naturals · powder · 3.53 ounces
- On the market (NIH)
- UPC 0 21078 00149 2
- DSLD label 274785
- Serving 1.9 g (.5 Teaspoon)
- 52 servings
L-Ornithine Powder by Source Naturals lists one ingredient: 1.9 g of L-ornithine per serving of 1.9 g. Its current label entered the NIH Dietary Supplement Label Database on November 22, 2022.
What is in L-Ornithine Powder?
Each row as the label prints it, per serving of 1.9 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 | 10 Calories | ||
| L-Ornithineas L-Ornithine Hydrochloride | 1.9 g | Higher than 95% of 258 products listing ornithine (median 400 mg). |
Source: NIH ODS Dietary Supplement Label Database, label 274785 (entered November 22, 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?
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 1,900 mg of L-ornithine (filed by NIH under ornithine) is higher than 95% of the 258 ornithine products that print an amount; 12 list more.
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.
- Pure L-Ornithine Powder UnflavoredDoctor's Best same ingredients
- L-Ornithine 667 mgBIOVEA same ingredients
- 100% Pure L-Ornithine 1500 MilligramsNutraBio same ingredients
- 100% Pure L-OrnithineNutraBio same ingredients
- L-OrnithineHerbadiet same ingredients
- L-Ornithine PowderHerbadiet 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
- Suggested Use: 1/2 teaspoon daily between meals mixed in water or juice.
- Warnings
- Note: If you are pregnant, may become pregnant, or breastfeeding, consult your health care professional before using this product.
- Do not use if either tamper-evident seal is broken or missing.
- Keep out of the reach of children.
- Allergens and what it does not contain
- Contains no yeast, dairy, egg, gluten, corn, soy or wheat. Contains no sugar, starch, salt, preservatives, or artificial color, flavor or fragrance.
- Storage
- Store in a cool, dry place.
Source: label statements in DSLD label 274785.
How many labels does L-Ornithine Powder have?
One label is on file, entered on November 22, 2022.
- Label 274785 (current) Entered November 22, 2022 · on the market · 3.53 ounces · UPC 0 21078 00149 2
Source: DSLD label entry and market events, version 9.4.0 (labels entered through September 25, 2025).
Who makes it?
The label names Source Naturals, Inc. (distributor), Santa Cruz, CA. All Source Naturals products.