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Arginine and citrulline are two amino acids integral to the use and metabolism of proteins as well as the maintenance of muscle tissue. Both are key intermediates in the urea cycle, where they participate in the deoxidation of ammonia through the production of urea.
Arginine plays an important role in cell division, wound healing, ammonia removal from the body, immune system function, and hormone release. Endogenous arginine is a precursor for the synthesis of nitric acid (NO), contributes to wound healing and regulates blood pressure. Additionally, any arginine that is not converted to urea enters the general bloodstream where it is distributed to various tissues, and metabolized for other uses such as protein synthesis.
Citrulline helps to remove toxins such as lactic acid and ammonia, two byproducts that arise after intense physical activity. These byproducts can significantly hinder high performance during exercise. Citrulline acts supportively in reducing the effects of these substances and their effective removal from the body.
Its Arginine & Citrulline formulation NOW Sports contains these amino acids in free form, increasing their bioavailability and their better absorption by the body.
Note:
The above information about the ingredients of the product are the results of studies. They are not an opinion of the EFSA (European Food Safety Authority).