What are three functions of carbohydrates?

Carbohydrates serve several vital roles in the body, and one of the primary functions is to provide energy. When carbohydrates are consumed, they are broken down into glucose, which is the body's preferred energy source, especially for the brain and nervous system. These cells rely heavily on glucose for optimal function.

Additionally, carbohydrates play an essential role in supporting fat oxidation. When sufficient carbohydrates are available, the body can burn fat more efficiently. Insufficient carbohydrate intake may lead to the body resorting to protein or fat as primary energy sources, which can be less efficient and may result in fatigue or decreased performance.

Moreover, carbohydrates are critical for normal brain function because they supply the glucose necessary for the central nervous system. This connection highlights the importance of carbohydrates not just for muscular activity but also for cognitive processes and overall brain health.

Other answers touch on different functions that are not primarily associated with carbohydrates, such as hormone production and skin health, which are more relevant to proteins, fats, and vitamins rather than carbohydrates.