"The three basic food groups with which we are familiar are proteins, fats, and carbohydrates. For the immediate energy needs, fats and carbohydrates are the main sources. Cutting through all the explanations, Dr. Edelstein informed us that for backpacking, a diet should be composed of 50 percent carbohydrates (500 to 600 grams per day) with “constant carb snacking,” 35 percent fat (200 grams per day) and 15% protein (65 grams per day)."
Wow! That works out to 4060 calories, John. Did she relate that amount to a person's body weight and hiking pace? Was it meant to cover the entire caloric expenditure for a day? Did it factor in the type of terrain, e.g. flat, hilly, off trail, high/low altitude? Lots of questions, I admit, but I'm super curious to find out the context for her recommendations. Potentially very useful information.
edit: I just read the article, which is identical to what you posted. It looks like whatever context she may, or may not, have provided is not included. Too bad, as without it I don't know how to evaluate her recommendations in relation to my specific situation. So near and yet so far.... :=(