Macronutrients, or “macros,” are nutrients your body needs in large amounts to function optimally. The three main macros are carbohydrates, protein, and fat. Share on Pinterest Nadine Greeff/Stocksy ...

Macronutrients, or "macros," are essential nutrients your body needs in significant amounts for optimal function. The three main macronutrients—carbohydrates, protein, and fat—play unique roles in ...