The majority of the foods we consume are classified as one of the three macronutrients or "Macros": Protein, Carbohydrate, or Fat. By definition from Precision Nutrition, macronutrients are “nutrients the body requires in large amounts.”
Now, that does not mean that a specific food is STRICTLY one macronutrient; most food is made up of 2-3 of the 3 macros, but the majority rule is what classifies it. Keep that in mind as you are learning more about macros throughout this article.
Aside from macronutrients, our food also includes micronutrients (vitamins and minerals), phytochemicals (nutrients from plants) and zoochemicals (from animal food sources such as creatine).
Seems silly to say, but all of this food contains ENERGY - energy and fuel that we need to
1) Stay Alive
2) To Thrive.