L-Ornithine 667 mg
by Source Naturals · capsule · 100 capsules
- On the market (NIH)
- UPC 0 21078 01642 7
- DSLD label 295949
- Serving 1 to 3 capsules; amounts per 3 capsules
- 33 servings
L-Ornithine 667 mg by Source Naturals lists one ingredient: 2 g of L-ornithine per serving of 3 capsules. Its current label entered the NIH Dietary Supplement Label Database on August 23, 2023.
What is in L-Ornithine 667 mg?
Each row as the label prints it, per serving of 3 capsules. 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 | ||
| Protein | 2 g | 4% | 70% of 8,985 products listing protein give more (median 16 g). Per day at the most servings: 4 g. |
| L-Ornithineas L-Ornithine Hydrochloride | 2 g | Higher than 95% of 258 products listing ornithine (median 400 mg). Per day at the most servings: 4,000 mg. |
Source: NIH ODS Dietary Supplement Label Database, label 295949 (entered August 23, 2023), 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 2,000 mg of L-ornithine (filed by NIH under ornithine) is higher than 95% of the 258 ornithine products that print an amount; 8 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?
The products whose ingredient lists overlap most with L-Ornithine 667 mg's, rare ingredients counting for more.
- L-Ornithine HCLPureBulk.com 1 shared, 70% alike
- Free Form Amino Acid L-Ornithine 500 mgNature's Plus 1 shared, 70% alike
- 100% Pure L-Ornithine 1500 MilligramsNutraBio 1 shared, 70% alike
- 100% Pure L-OrnithineNutraBio 1 shared, 70% alike
- L-OrnithineNOW Sports · off the market 1 shared, 70% alike
- L-Ornithine Amino Acid 500 mgSwanson Premium Brand 1 shared, 70% 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
- Suggested Use: 1 to 3 capsules 1 to 2 times daily. Use before exercise or at bedtime with plenty of water.
- 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
- Hypoallergenic: contains no yeast, dairy, egg, gluten, corn, soy or wheat. Contains no sugar, starch, salt, preservatives, or artificial color, flavor or fragrance.
Source: label statements in DSLD label 295949.
What else is on the label?
Other ingredients: Gelatin, Silica, Magnesium Stearate.
How many labels does L-Ornithine 667 mg have?
One label is on file, entered on August 23, 2023.
- Label 295949 (current) Entered August 23, 2023 · on the market · 100 capsules · UPC 0 21078 01642 7
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.