Do what? exercise may make you gain weight?

[mgb_phys]

Keep in mind that muscle is denser than fat.

OK, but what about body composition changes? I can't believe that wasn't measured. The women who exercised most may have gotten a lot smaller, but as they exchanged fat for muscle, their weight may not have changed.

I suppose it depends on wether you want to look thin and be healthy or you care more about being compared to a platinum cylinder in Paris

 

[Swansea_J]

Well depends what exercise. Weight training will obviously make you gain muslce, which will make you gain weight.

How ever, weight gain, the same with weight loss is dictated mostly by calories in vs calories out.

Simply, if you want to lose weight, then you have to eat less calories than your body needs to maintain your weight. There's loads of online calculators to work out what your maintainence calories are.