Garlic’s pungency offers a clue — the same compounds that make it taste (and smell) so strong also make it a powerful medicine for enhancing heart health. But it also boasts physique benefits. Recent research shows that it helps lower the catabolic (muscle-burning) hormone cortisol, boosts testosterone levels and boosts nitric-oxide levels. While eating cooked garlic may be good, taking a supplement is even better. Add 200 to 1,000 milligrams of a garlic supp to your preworkout shake to help you keep muscles growing.