What people consume before a workout is often the difference between a successful training session and giving up after five minutes. How much protein, fats and carbs to eat is not rocket science and depends on many factors, one if which is the type of exercise. Many people think they are eating healthy by eating non-caloric sweetened beverages, consuming oatmeal with fruit for breakfast, skipping snacks between meals or eating high-sugar “health bars” as a snack prior to lunch, Meghan Doherty, BSN, and nutrition consultant for Madsweat, says. But all of these are hurting the body. Don’t doom your workout before you even start. Know the common and lesser-known diet mistakes so you can see results sooner.