Does yo-yo dieting ruin your metabolism?

Your metabolism will forgive you, that's the good news. But when you regain weight you often gain back proportionally more fat than muscle. This will take a toll on your metabolism, because, pound for pound, muscle burns more calories than fat.

Doctors recommend consuming 50% of your body weight in grams of lean protein (e.g. 75 grams for a 150 pound person) to maintain muscle mass. Also you should do strength-training 2 to 3 times a week.

Excerpt from a Parade article of 1/17/10 on page 15.