Nobody goes to bed skinny and wakes up 50 pounds heavier. Most of us gain weight by eating only 100 to 200 extra calories a day, says James O. Hill, Ph.D., professor of medicine at the University of Colorado School of Medicine. The trick is to make subtle changes in our environment — changes that cut out those 100 to 200 calories a day — so we gradually alter our eating habits and lose weight. After all, the best diet is the one you don't know you're on. … Back to Article
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