noun
- A non-essential amino acid produced naturally in the body and found in certain foods, involved in the urea cycle and nitric oxide production.
Usage: biochemistry; nutrition
Examples
- Citrulline is synthesized in the kidneys and intestines as part of normal protein metabolism.
- Watermelon contains high levels of citrulline, which the body converts to arginine.
- Athletes sometimes take citrulline supplements to improve blood flow and exercise performance.
- The urea cycle depends on citrulline to remove excess nitrogen from the body.
- Citrulline malate is a popular ingredient in pre-workout supplements.