Which amino acid has been pre-cleared as a natural health product for "modest improvements in exercise capacity"?

Question

Quizplus · Accepted Answer

Arginine has been pre-cleared as a natural health product for "modest improvements in exercise capacity". Leucine and glutamine are commonly used in sports supplements, but they have not received this specific pre-clearance for exercise capacity. Lysine is not typically used in sports supplements.

Which Amino Acid Has Been Pre-Cleared as a Natural Health