Well, here's a new one you might not have heard of, and it's called the Glycemic Index Diet. According to Rick Gallop, president of the Heart & Stroke Foundation, and author of "The G.I. Diet" or Glycemic Index Diet, fad diets just don't work in the long-term for most people. Why? Because although they help you lose weight, they're usually too complicated to live with on a daily basis.
So, what is the Glycemic Index, exactly? It's a list that ranks how fast your body breaks down certain types of food and converts them into energy. The higher the G.I. number, the faster your body absorbs it, and the faster your blood sugar spikes. If you eat foods that break down slowly, you can lose weight without going hungry.
And the best thing about the Glycemic Index Diet - it's easy to follow. Think of a stoplight. You know, green, yellow, red. You can eat as many "green light" foods as you want. They're low-glycemic things, like fruits, vegetables, whole grains, low-fat dairy and nuts.
The yellow light   or occasional foods, include brown rice, cheese pizza, Grape Nuts cereal, dark chocolate, a glass of wine and potatoes.
And the red light foods are the ones to avoid, like donuts, french fries and white bread. And a few surprises, like melon, mayo, pretzels, cornflakes and tofu frozen desserts.
If you'd like more information about this diet, the book is called "The G.I. Diet" by Rick Gallop.