Simple carbohydrates are monosaccharides and disaccharides occurring naturally in fruits, vegetables, and dairy products. Some examples of simple carbohydrates are glucose, galactose, and fructose, all of which are monosaccharides and, sucrose, lactose, and maltose, all of which are disaccharides.
Simple carbohydrates elevate blood sugar levels rapidly, providing "instant energy" which is quickly utilized and dissipated. Additionally, refined sources of simple carbohydrates, such as candy, contribute only calories to the diet. These "empty calories" are often consumed in place of foods which would provide important nutrients in addition to the energy.
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