Little' being the operative word. They believe that eating just 100 fewer calories a day - the equivalent of a single biscuit - can help you stay trim into old age. That, experts say, is enough to ...

"You can save 100 calories if you have a diet soda as your mixer," says Dawn Blatner-Jackson, MS, RD, author of The Flexitarian Diet. Mix cocktails with water, club soda, low calorie juices ...

When dieting is over, the reverse diet is the idea that you can add in ... tiny increments—typically adding anywhere from 30 to 100 calories a week for a few weeks until you get back to your ...