(The Best Years in Life) If you're managing to eat 5-7 daily servings of fruits and vegetables, give yourself a pat on the back. But don't be tempted to cut back on protein to make room for all that produce. Recent research has shown that getting a higher percentage of calories from protein helps people get slim and stay that way. This is because protein forms the structure and integrity of every part of the body, and the body's signal to stop eating is not sent until protein requirements are fulfilled.Read More.