What is the primary function of carbohydrates in the human body?

Carbohydrates are primarily known for serving as the body's main source of energy. When consumed, carbohydrates are broken down into glucose, which is then used as fuel by the body's cells, tissues, and organs. This process is especially important for the brain, which relies heavily on glucose to function optimally.

Providing energy for physical activities and maintaining vital functions, carbohydrates are a critical component of a balanced diet. They can be categorized into simple and complex forms, with complex carbohydrates often providing sustained energy due to their slower digestion. While other nutrients play significant roles in various physiological processes, the primary function of carbohydrates centers around energy supply, making them essential for overall health and performance.