Referência:
The National Academies Press. Dietary Reference Intakes for Energy, Carbohydrate, Fiber, Fat, Fatty Acids, Cholesterol, Protein, and Amino Acids (Macronutrients) (2005). Disponível em:
http://fermat.nap.edu/books/0309085373/html.
Acessado em 04-04-06.