Main content Ornithine

Ornithine

Uses

How It Works

How to Use It

Most people would not benefit from ornithine supplementation. In human research involving ornithine, 5–10 grams are typically used per day, sometimes combined with Reference arginine.

Where to Find It

As with Reference amino acids in general, ornithine is predominantly found in meat, fish, dairy, and eggs. Western diets typically provide 5 grams per day. The body also produces ornithine.

Possible Deficiencies

Since ornithine is produced by the body, a deficiency of this nonessential Reference amino acid is unlikely, though depletion can occur during growth or Reference pregnancy, and after severe trauma or malnutrition.¹

Interactions

Interactions with Supplements, Foods, & Other Compounds

The presence of Reference arginine is needed to produce ornithine in the body, so higher levels of this Reference amino acid should increase ornithine production.

Interactions with Medicines

As of the last update, no reported interactions between this supplement and medicines. It is possible that unknown interactions exist. If you take medication, always discuss the potential risks and benefits of adding a new supplement with your doctor or pharmacist.

The Drug-Nutrient Interactions table may not include every possible interaction. Taking medicines with meals, on an empty stomach, or with alcohol may influence their effects. For details, refer to the manufacturers’ package information as these are not covered in this table. If you take medications, always discuss the potential risks and benefits of adding a supplement with your doctor or pharmacist.

Side Effects

Gastrointestinal distress has been reported with intakes over 10 grams of ornithine per day.

Related Information

Reference What Are Depletions & Interactions?

References

1. Zieve L. Conditional deficiencies of ornithine or arginine. J Am Coll Nutr 1986;5:167–76. [review]

Last Review: 11-07-2012

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The information presented in Aisle7 is for informational purposes only. It is based on scientific studies (human, animal, or in vitro), clinical experience, or traditional usage as cited in each article. The results reported may not necessarily occur in all individuals. For many of the conditions discussed, treatment with prescription or over the counter medication is also available. Consult your doctor, practitioner, and/or pharmacist for any health problem and before using any supplements or before making any changes in prescribed medications. Information expires June 2013.

This information does not replace the advice of a doctor. Healthwise, Incorporated disclaims any warranty or liability for your use of this information. Your use of this information means that you agree to the Reference Terms of Use. Reference How this information was developed to help you make better health decisions.