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					Originally Posted by Did you just call me Coltrane?  I hear you.  Although if the person with a slow metabolism can accurately calculate his/her BMR, the formula will still work (not saying it'll be easy though).  If you consistently eat in a caloric deficit, you are almost guaranteed to lose weight. | 
	
 I don't disagree.  I just think that eating at a caloric deficit has wildly different effects based on body type/metabolic rate.  For someone whose body wants to be around 220, the effects of caloric deficit are much lower once they enter the 230 pound range and below.
When I gain 10 pounds, I can drop it fairly easily.  When my friend gains 10 pounds, it is a colossal struggle for them to drop that same amount of weight.  I can cut calories for a few weeks and be back where my body wants to be fairly easily.  I have friends for whom it takes 
months to drop that amount of weight.  And it's not that they cheat any more than I do.
If you look at genetics--or more generally, the body type that runs in a family--you can see there are people who will absolutely not be able to escape the body type they're born with without constant and extremely difficult work.  It sucks, and thin people have a blind spot when it comes to this.  I've been as guilty as they come about it.  We constantly think it's about discipline and self-control when really, a fatty calorie for one person is just not the same as a fatty calorie for another.
TM