What are calories and macronutrients?

Calories are units of energy that your body gets from food and uses for all vital processes - both basic (like breathing and digestion) and more energy-demanding, such as physical activity. Macronutrients are the three main groups of nutrients: protein, fat, and carbohydrates. Protein builds and repairs tissues, fats support hormone and nervous system function, and carbohydrates are the body’s main energy source. Fitatu® shows you exactly how much of each you consume daily, helping you better understand your diet and make smarter food choices.