L-Ornithine: benefits, dosage, contraindications

Ornithine is a non-essential amino acid, meaning it is not necessary to consume it in the diet because the body can synthesize it. It plays a key role in the urea cycle, where it helps eliminate excess nitrogen during the breakdown of arginine by the enzyme arginase. During this cycle, ornithine is recycled into citrulline and eventually into arginine, facilitating the processing of nitrogen waste. Although ornithine does not directly participate in protein synthesis, it influences several other important biological processes. Research has suggested that ornithine could stimulate growth hormone production via a mechanism potentially beneficial for increasing muscle mass. The use of ornithine as a supplement is common among athletes and active individuals looking to enhance their physical performance. Ornithine is believed to help increase arginine levels, an amino acid that supports endurance and muscle recovery.