The three macronutrients
Protein, carbohydrates and dietary fats are the three main macronutrients. They provide energy and play different roles in the body.
Protein
Protein supplies amino acids used for tissue maintenance and many biological processes.
Carbohydrates
Carbohydrates are an important source of energy, particularly during higher-intensity activity.
Fats
Dietary fats provide energy and support essential functions including absorption of fat-soluble vitamins.