The pre-workout snack does not fuel the workout. Every meal, every day is about fuelling your workouts. It takes many hours to refill your muscle and liver glycogen stores, so until a meal has been processed your body has to rely on existing fat and glycogen reserves to power the workout. If you eat proteins, healthy natural fats and good carbohydrates such as vegetables and some fruits and the occasional white rice or sweet potato you will have plenty of muscle glycogen to fuel your activities. Run your own experiment…