>> "all this really shows is that processed diet was leaving participants more hungry so they ate more. " This is 99.9% of the reason why people are overweight

>> "all this really shows is that processed diet was leaving participants more hungry so they ate more. " This is 99.9% of the reason why people are overweight. Every biological being eats until they're full(the body stops sending hunger signals). this is true for human, as it is ducks, monkeys, dogs or pretty much any other animal. For many, eating junk food/processed foods, breaks this satiety mechanism (and not just in the short run, there may be long term effects that prevent people from going back to normal). Not being hungry, having satiety is the holy grail of weight management. Unfortunately, we don't have the means to produce satiety without calories. Yes, fiber/protein/micronutrients densities do help a little, but it does not help enough. And there hasn't been enough studies on it. Other than the Holtz studies I haven't found much done on this subject.