Macros are short for macronutrients and are categorized as protein, carbs, and fat. Macros contribute to the calories in the food we eat. 1g Protein = 4 calories 1g Carb = 4 calories 1g Fat = 9 calories When categorizing food, we focus on what the food mostly consists of. Some proteins will have small amounts of carbs, some fats will have some amounts of protein, and some foods will consist of all macros. Examples of protein: chicken,