Despite the popularity of recent diet plans that call for limiting carbohydrate intakes, carbohydrates still serve as a principal source of energy in most diets.
Digestible carbohydrates are the main source of calories for most of the world’s population. In some countries, carbohydrates provide more than 75% of the total caloric intake. Recent consumption figures from the U.S. Dept. of Agriculture indicate that in the United States carbohydrates supply 40–60% of the calories in the diet. The USDA…