Tag: Macronutrient functions

The human body is composed of 50 to 75% water, a crucial component of the four macronutrients and their functions. These essential building blocks, which also include carbohydrates, proteins, and fats, are needed in large quantities to sustain life, provide energy, and ensure proper bodily functions.

According to the Dietary Guidelines for Americans, macronutrients should make up the majority of a person’s daily calorie intake. Understanding **what are the main functions of macronutrients** is crucial for building a healthy diet, as these essential nutrients—carbohydrates, proteins, and fats—are the primary fuel sources for the body and perform vital physiological roles.