Vegetarians, despite swearing off meat, understand that they cannot completely cut protein from the diet, so instead of eating meat, they substitute soy rich foods like tofu, into their diets, and many snack on protein bars or sip protein drinks.
For anyone partaking in endurance sports like marathon running, long distance and tri-athlons, Glutamine can help repair muscles in recovery and prevent muscle cramps. It’s considered as a dietary supplement for the high intensity type activities.