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Lyle:
The whole don't eat protein + fat or don't eat carbs + whatever is a bunch of bullshit within this context (the usual argument, and the original question, had to do with separating it out across meals and fat gain).
the whole reasoning behind don't eat carbs + fat is based on a simplistic and outmoded model of fat cell metabolism.
The basic reasoning, that you gave was, insulin = storage hormone + dietary fat = bodyfat
Problems
1. It takes only tiny amounts of insulin to affect fat cell metabolism
2. Protein more than sufficiently raises insulin this much so protein + fat works just as well to both inhibit fat cell mobilization and stimulate storage of nutrients.
3. Insulin is important to increase LPL activity. Lpl was thought to be rate limiting for fat storage but this is not the case. All LPL does is release fatty acids from chylomicrons.
4. Acylation stimulation protein (ASP) is the real player in triglyceride synthesis in the fat cell. It is stimulated by the mere presence of chylomicrons in the bloodstream and is insulin indepdendent. So whether you eat your fat with carbs protein or by itself, the dietary fat is going to get stored. Separating it out from carbs isn't going to make a sh*t's worth of difference.
Whether you end up gaining or losing fat will depend on 24 hour fat balance (oxidation - intake) which will essentially be 24 hour calorie balance.
Of course, food combining nonsense will keep you leaner in the sense that, by setting up rules that only allow you to eat fat at every other meal, you'll probably end up eating less fat total over the day...
The whole don't eat protein + fat or don't eat carbs + whatever is a bunch of bullshit within this context (the usual argument, and the original question, had to do with separating it out across meals and fat gain).
the whole reasoning behind don't eat carbs + fat is based on a simplistic and outmoded model of fat cell metabolism.
The basic reasoning, that you gave was, insulin = storage hormone + dietary fat = bodyfat
Problems
1. It takes only tiny amounts of insulin to affect fat cell metabolism
2. Protein more than sufficiently raises insulin this much so protein + fat works just as well to both inhibit fat cell mobilization and stimulate storage of nutrients.
3. Insulin is important to increase LPL activity. Lpl was thought to be rate limiting for fat storage but this is not the case. All LPL does is release fatty acids from chylomicrons.
4. Acylation stimulation protein (ASP) is the real player in triglyceride synthesis in the fat cell. It is stimulated by the mere presence of chylomicrons in the bloodstream and is insulin indepdendent. So whether you eat your fat with carbs protein or by itself, the dietary fat is going to get stored. Separating it out from carbs isn't going to make a sh*t's worth of difference.
Whether you end up gaining or losing fat will depend on 24 hour fat balance (oxidation - intake) which will essentially be 24 hour calorie balance.
Of course, food combining nonsense will keep you leaner in the sense that, by setting up rules that only allow you to eat fat at every other meal, you'll probably end up eating less fat total over the day...