Carbohydrates – Uses, Benefits, Sources and Dosage What is Carbohydrates?Carbohydrates are the main sources of energy in the body. These are macronutrients which means it is one of the main source to gain energy. There are three different types of carbohydrates – sugar, starch and fiber. These are found through different sources of food. Carbohydrates provide glucose to body which is converted into energy that supports biophysical functions and activity. Carbohydrates are the main part of healthy diet. Sources of