Beef nutrition: calories, carbs, GI, protein, fiber, fats Beef Benefits (Why is Beef Healthy?) Data Driven Science Total L Carnitine food sources (per 100 gm) Non vegetarian: Beef steak, cooked: 56 162 mg (depending on cuts and cooking) Ground beef, cooked: 75 86 mg Pork, cooked (100 gm): 25 61 mg Mutton (leg, Does Carnitine from Red Meat Cause Heart Disease? Diagnosis Diet New study links L carnitine in red meat to heart disease Harvard Health Buy L Carnitine Natural Formula, 105 g Benefits