I've just been reading his Mastering Leptin (as recommended to me by PDL). About halfway through he opines that a high-fat diet increases (not 'can increase' or 'may increase' but 'increases' as an statement of absolute) insulin resistance because it causes the stomach to release a peptide (the name of which I've forgotten).

Now I'm REALLY confused - I may be IR, does this mean PB isn't right for me (or is Richards a quack?)? I've looked at his website - and he REALLY gives his own supplements the hard sell (the complete opposite of what Mark does, obviously!)