Well, that is technically true – but trust me, I need to lose weight and I use the scale to measure against that. Yes as I get fitter the scale will mean less, but right now it is key part of my measurement process (as is taking waist measurements).

1. The fat you are going to lose actually contains some water that isn't counted in the fat content measurement, so this is 'good stuff' you will automatically lose when you lose the fat.

2. There is no such thing as ONLY losing fat. Whenever you lose mass, it will be some combination of fat, water and lean muscle mass. This is normal. Whenever you exercise (or lift the remote, walk to the bathroom, whatever), you are burning calories. The ratio of the calories burnt in terms of fat:muscle differs depending on your metabolic rate/heart rate at the moment. In actuality, the only time of the day when your fat burn v.s. muscle burn is 100% : 0% is when you are sleeping. Other than that, you're always losing muscle when you lose fat, which is why weight training is so important when you're on a diet.

So essentially, yes, if you want to get to 185 lbs, you are going to lose muscle mass.

Hope this helps!

I would continue to focus, as you have been, on diet and exercise. As you know, muscle weighs more than fat and you might look crazy skinny, sinewy at 185 lbs. if you are very muscular.

You may find that at 200 lbs., comprised mostly of muscle, you look better, visually, than you would at 185 lbs.

But the math is weird, and I don't get it either.