Digestion is the process through which the body breaks down food
The three macronutrients(protein,fats and carbohydrates)must be digested before they can be used by the body. The two micronutrients(minerals and vitamins) and water do not need to be digested and can be used by the body as they are.
During digestion,food is broken down physically and chemically.
Physical breakdown is when food is chewed by the teeth and churned around in the stomach . This breaks food into small pieces
What nutrients need to be digested before being used by the body?
Protein ,Fats and Carbohydrates
Chemical Breakdown is when the three macronutrients must be chemically broken down by digestive enzymes before they can be used by the body
