Answer:
1) carbohydrates, fats and protein
2)Our bodies digest the food we eat by mixing it with fluids (acids and enzymes) in the stomach. When the stomach digests food, the carbohydrate (sugars and starches) in the food breaks down into another type of sugar, called glucose.
The stomach and small intestines absorb the glucose and then release it into the bloodstream. Once in the bloodstream, glucose can be used immediately for energy
3)-Carbohydrates supply energy for your body's functions. -Fats supply your body with energy, form your cells, maintain body temperature, and protect your nerves. -The most important function of proteins, however, is their role in the growth and repair of your body's tissues.