“Now, the typical counter-response to what I wrote above is that the percentage values are assumed to be based on some fairly average caloric intake. That is, if we were to put our 200 lb guy (150 g/protein required per day) on a more ‘average’ 2400 cal/day (12 cal/lb) and 30% protein, he will come out with a protein intake of 2400 * 0.3 = 800 cal from protein yielding 200 grams/day or 1 gram per pound. Yes, a little higher than the 150 g/day but not excessively so. And that’s fine, percentage based diets are going to be roughly valid within a certain caloric range. The problem is that isn’t always how they are applied and that’s certainly not how the percentages are typically interpreted.”