NOW Arginine & Ornithine is formulated to support protein metabolism.*
Arginine and Ornithine combines two essential amino acids into one optimal supplement. Arginine is necessary for urea metabolism, a process that prepares toxic ammonia for safe excretion by the kidneys. Ornithine is synthesized from Arginine and is a precursor of citruline, proline and glutamic acid. Both of these amino acids are popular with athletes and other active individuals.
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