Carbohydrates provide the most direct energy to our cells. They can be simple (as in sugars) or complex (as in vegetables and grains) and are readily broken down into glucose, the energy for our cells. Whole-carbohydrate foods such as fruits, vegetables, and whole grains are also good sources of fiber; refined carbohydrates in products made with white flour or white sugar, such as cookies, crackers, bagels, or pasta, do not contain fiber. They do, however, provide quick sources of concentrated energy.
Find out more about this book:Our Bodies, Ourselves: A New Edition for a New Era