I forgot to add that you can find a lot of incredibly useful material at www.nap.edu
with Dietary Reference Intakes for Energy, Carbohydrate, Fiber, Fat, Fatty Acids, Cholesterol, Protein, and Amino Acids (Macronutrients)
(aka The Macronutrient Report
) being an invaluable reference for anyone with a serious interest in nutrition. The Linus Pauling Institute's Micronutrient Information Center (link
) is another useful resource.