I work at this gym now as a PT and one of the head honchos who comes in to all the difference clubs to teach the trainers was explaining the Law of Thermodyamics. Here’s what it kind of went like:
Him: “If your BMR or maintenance level is say 2000 calories and you accidentally screw up a day and binge late at night and eat a piece of chocolate cake 1 minute before you go to sleep for 8 hrs. Will you lose fat assuming you only ate 1900 calories that day?”
Me: “No, because you’ll probably screw up your blood-sugar levels, which were already low, and have a spike in insulin followed by a drop. The carbs and fat won’t be used as energy but will be stored as fat, right?”
Him: “Well, actually since you eat less calories than you burned, you will lose fat. It’s the law of thermodynamics.”
Me: “Ok, so you might lose weight, but wouldn’t it be muscle instead of fat since you’re eating below your BMR?”
Him: "Not necessarily. Although, protein, carbs, and fat %'s are important, it basically comes down to CALORIES IN VS CALORIES OUT.
Okay, it didn't go exactly like that, in that order, but you get the idea of his thinking and mine. Who is right here? Are we both right to a certain extent? These people I work with think they're way is the only way and are all high-carb people with an intense hatred for low-carb people. They're also putting 180 lb. women with 30% bodyfat on a 1500 calorie diet of 65% carbs. They can eat whatever they want so long as they're ratios and calories stay constant.
Is this all bogus or what? These people are such good salesman that I’m almost convinced that they’re right and I should go back to training like a sissy and do cardio. What’s up?