I am not completely sure why they recomend it, I think it has something to do with making ketosis easier or better. Dan Duchaine writes about it in Dirty Dieting.
If you are counting calories it wouldn't really matter where you got them though would it ? I mean logically?
But in truth given the same amount of calories of protein and carbs or protein and fat you are more likely to lose body fat on the protein and fat diet.
Most women fail on the ketogenic diets because they don't eat enough fat. So shooting for a 3-1 or 4-1 could be useful.
If you are morbidly obese or just want to lose fat quickly they will put you on a "fat fast" where you do 1000-1200 calories a day in just fat. But if you add some protein into that mix you will lose less muscle.
Sorry I don't have a better answer. I'll look around a little on the net.
Quote:
Originally posted by AXOLiz
Hey James - do you know why that ratio of fat to protein works? I've read that it's counterproductive to eat too much fat (if you're counting calories) because it can be stored more readily by your body (since it's already fat..), so I'm curious to hear the other side of that. 
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