<P> The typical American diet is about 50 % carbohydrate , 15 % protein , and 35 % fat . These macronutrient intakes fall within the Acceptable Macronutrient Distribution Ranges ( AMDR ) for adults identified by the Food and Nutrition Board of the United States Institute of Medicine as `` associated with reduced risk of chronic diseases while providing adequate intakes of essential nutrients , '' which are 45 - 65 % carbohydrate , 10 - 35 % protein , and 20 - 35 % fat as a percentage of total energy . However , the nutritional quality of the specific foods comprising those macronutrients is often poor , as with the `` Western '' pattern discussed above . Complex carbohydrates such as starch are believed to be more healthy than the sugar so frequently consumed in the Standard American Diet . </P>
<P> The typical American diet is about 50 % carbohydrate , 15 % protein , and 35 % fat . These macronutrient intakes fall within the Acceptable Macronutrient Distribution Ranges ( AMDR ) for adults identified by the Food and Nutrition Board of the United States Institute of Medicine as `` associated with reduced risk of chronic diseases while providing adequate intakes of essential nutrients , '' which are 45 - 65 % carbohydrate , 10 - 35 % protein , and 20 - 35 % fat as a percentage of total energy . However , the nutritional quality of the specific foods comprising those macronutrients is often poor , as with the `` Western '' pattern discussed above . Complex carbohydrates such as starch are believed to be more healthy than the sugar so frequently consumed in the Standard American Diet . </P>
a majority of calories in the average american diet come from what macronutrient
a majority of calories in the average american diet come from what macronutrient
carbohydrate
carbohydrate