I was talking a PhD canidate (PhD= pile it higher and deeper.) and he was telling me about ALL this research on using food combinations to reduce BF and gain LBM. The rules were protein and carb meals with no fat, OR protein and fat meals with no carbs. My argument was that at the end-of-the-day it wold make no difference and he wanted to blab about insulin levels, lipids, blah, blah. Is there any validity to this dietary approach, or is this just another fad in the wind? Thanks for the responses.