What is the primary function of carbohydrates in the diet?

The primary function of carbohydrates in the diet is to provide energy. Carbohydrates are the body's main source of fuel, as they are easily converted into glucose, which is the preferred energy source for cells, particularly in the brain and during physical activity. When consumed, carbohydrates are broken down into simpler sugars that the body can utilize for immediate energy or store for later use.

While other options mention important functions of different nutrients, such as aiding digestion, hormone production, and fat absorption, these roles do not primarily pertain to carbohydrates. Instead, they relate to dietary fiber, proteins, and fats, respectively. Understanding the role of carbohydrates as the body's chief energy source helps highlight their importance in a balanced diet.