Carbohydrates are a group of biochemical compounds that are one of the most important sources of dietary energy for the body. Carbohydrates are made up of small units called sugars, and they are broken down in the digestive system to convert into glucose, which is the main form of carbohydrate used to fuel the body. Carbohydrates are an important source of fuel needed to perform vital processes in the body, and are essential for maintaining brain health and activity. Carbohydrates are found in many food sources, such as wheat, rice, potatoes, grains, fruits and vegetables. It is recommended to have a moderate amount of carbohydrates in the daily diet to maintain nutritional balance and proper weight.