What are the primary functions of carbohydrates in food?

Carbohydrates play essential roles in nutrition, primarily serving as a major source of energy for the body. When consumed, carbohydrates are broken down into glucose, which is utilized by the body's cells for fuel. This energy is vital for both physical activity and maintaining various bodily functions.

In addition to providing energy, carbohydrates also support digestive health. Soluble and insoluble fibers, both types of carbohydrates, aid in digestion. Soluble fiber can help regulate blood sugar levels and lower cholesterol, while insoluble fiber adds bulk to stool and promotes regular bowel movements, thus contributing to overall gut health.

While other options may touch on aspects of food quality and preparation, they do not directly address the primary nutritional roles that carbohydrates serve in our bodies. The unique contribution of carbohydrates to energy provision and digestive health solidifies option A as the correct answer.