Simple carbohydrates are also referred to as refined carbohydrates. The process of refining turns a Complex carbohydrates release their energy slowly, maintaining balanced blood sugar levels. Brown bread, brown rice, brown pasta, beans, lentils, chickpeas, oats and wholegrains are all... into a simple Carbohydrates are the primary source of energy for the body as they can be broken down into glucose (sugar) more readily than either protein or.... Simple carbohydrates cause a sharp increase in blood sugar levels and a rapid release of energy. White bread, white rice, white pasta, chocolate, biscuits, cake and honey are all examples of simple carbohydrates.