I don't think that's right. As you gained weight, your basal metabolic rate would also go up until you reached some equilibrium. If a pound of body fat consume

I don't think that's right. As you gained weight, your basal metabolic rate would also go up until you reached some equilibrium. If a pound of body fat consumes about 2-4 calories per day, then your extra 38 calories is only enough to maintain an extra 10-20 pounds of weight, not 100 pounds. You also need to subtracting the extra calories you burn carrying the extra weight around.