1 | Don't skip meals. When you get too hungry, you're less likely to make healthy choices. October 2010

2 | Never go on a diet when you're under a lot of stress. April 1974

3 | Ideally, you should try to lose no more than 1 to 2½ pounds a week. January 1954

4 | A short bout of exercise each day is more effective than longer, less frequent periods. June 1939

5 | To lose weight for good, know that you can't go back to your old eating habits. You'll need to change your lifestyle. April 1974

6 | Eating too little can backfire. Never have less than 1,200 calories a day—or you may slow down your metabolism. April 2006

7 | Don't grocery-shop when you're hungry. You're likely to make high-fat, low-nutrient impulse purchases. January 1994

8 | For a fit and toned figure, dieting alone isn't enough. You also need to exercise. February 1979

9 | A slipup doesn't have to lead to an entire day of overeating. Resolve to make better choices at your next meal. December 2010

10 | Cut down, not out: Trim portions of food instead of removing entire categories (carbs, fats, etc.). January 1966