RDA based on its role as the primary energy source for the brain; AMDR based on its role as a source of kilocalories to maintain body weight.
SELECTED FOOD SOURSCES
Starch and sugar are the major types of carbohydrates. Grains and vegetables (corn, pasta, rice, potatoes, breads) are sources of starch. Natural sugars are found in fruits and juices. Sources of added sugars are soft drinks, candy, fruit drinks, and desserts.
ADVERSE EFFECTS OF EXCESSIVE CONSUMPTION
While no defined intake level at which potential adverse effects of total digestible carbohydrate was identified, the upper end of the adequate macronutrient distribution range (AMDR) was based on decreasing risk of chronic disease and providing adequate intake of other nutrients. It is suggested that the maximal intake of added sugars be limited to providing no more than 25 percent of energy.