Diet can play a huge impact on the amount of energy we have. Yes, the body does convert all food into energy, however certain types of foods will definitely produce higher energy levels than others. Consuming complex carbs and protein rich foods high in minerals and vitamins, while maintaining good blood sugar levels will help keep your energy levels up throughout the whole day and prevent sluggish dips.
Complex carbs take a lot longer for the body to digest, they are low in sugar, rich in fiber and give you that feeling of fullness. Simple carbs which are found in fruits, vegetables, and processed grains are processed quickly by the body, spike your blood sugar, and leave you crashing and craving more. (Fruits and vegetables contain higher sugar content but are still a better snack option than junk food and candy bars).
Beans (soy, kidney, pinto)
Peas (split, chick)
Whole wheat pasta
So if you want to avoid fatigue and irritability and would rather feel energized and prepared for your workout sessions, try to plan ahead and be creative with your meal plans. Avoid simple carbs, high sugar content and focused on COMPLEX CARBS FOR ENERGY