One of the things every athlete knows is that you need energy to work hard. The energy may come from fat, or sugars, or be converted from protein or complex carbs. But you have to have energy to get work done.
What a lot of people don't realize is that your body also has to be given certain things to be able to process that energy. What happens when your body can't produce insulin, and convert sugars into glycogen? That's called Diabetes. There's all sorts of other maladies that can hijack your ability to work, too, including dehydration. Even if you're eating relatively healthily, you can hinder your diet by doing other things wrong.
So what we know is that your "energy level" is a combination of two things: the type of foods you eat, and your body's ability to process them. If there's a breakdown in either of those areas, you're going to have problems.
What factors affect your body's ability to absorb nutrition? Here's a short list of things that can negatively impact your nutrient intake:
- Sleep Deprivation
- Prescription Drugs
- Vitamin Deficiency