Carbohydrates, proteins and fats release the energy needed to live and make new cells.
Vitamins and minerals make your body work healthily.
Without them you will suffer deficiency diseases.
Without a balanced diet, you will end up malnourished.
If we take in too much energy, our diet can become unbalanced. Too much food/energy = weight gain and too little food/energy = weight loss.
A male uses more energy than a female on average so he needs more food.
The amount of work you do is normally directly proportional to the energy you need.
Food supplies chemical energy to your mucsles as you work.
The more exercise you do, the more energy you need.
Keeping your body temp constant uses energy.
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