One comment regarding BMI (Body Mass Index): This is one of the most inaccurate tool to measure healthy weights. It relies only on your hight and weight. If you are broad shouldered, you need to lose muscles to fit that criteria. If you are small boned, you could be 30% fat, and be declared thin and lean.

If you calculate the BMI for world class atheletes, most of them will be decalred unhealthy and obese (and body builders would fall under morbidly obese).

There is no substitue to focusing on fat to determine how healthy is your weight. Losing muscle to satisfy the numbers based on weight and hight only would make your body sound good to insurance companies and government stats, but it's a false indicator.

Wa'il