- Ornithine is an amino acid found in the human body. It is made when the body disposes of excess nitrogen in the urine.
- Ornithine has been shown to stimulate energy and growth hormone, which makes it of interest to bodybuilders. It has been used to improve performance during exercise. However, studies have shown mixed results when using ornithine hydrochloride to improve exercise performance.
- Ornithine is combined with a compound called amino acid aspartate to improve liver health. Although research supports the use of ornithine for liver problems, more evidence is needed before further conclusions can be made.