Homeโ€บGlossaryโ€บMacronutrients

Macronutrients

General

Protein, Carbohydrates, and Fats

The three primary nutrients the body needs in large amounts for energy and function โ€” protein (4 kcal/g), carbohydrates (4 kcal/g), and fats (9 kcal/g) โ€” tracked as 'macros' in nutrition planning.

Written by ยท Reviewed by the thecalcu.com team ยท Last updated June 22, 2026