noun. an amino acid that does not occur in proteins but is an intermediate in the conversion of ornithine to arginine.
- aminoalkanoic acid
Example sentences of the word citrulline
1. Noun, singular or mass
NIH says that the safety of citrulline is unknown, and that arginine may be safe at up to 9 grams per day for several days or weeks.
Among 18 men, those that were given citrulline malate showed a significant reduction in fatigue and had an increased synthesis of energy-producing enzymes for quicker recovery after exercise.
3. Verb, base form
L-arginine can also be converted to citrulline, releasing a highly reactive and metabolically important gas called nitric oxide.
4. Verb, non-3rd person singular present
NIH explains that you can’t take an actual “nitric oxide supplement,” but you can take supplements of the amino acids arginine or citrulline.