Answer: In short, yes… and no. Most research shows that fad diets do work, and some of them do so quite well. The dictionary defines “diet” as a regimen of eating and drinking sparingly to reduce one’s weight, so if the latest fad diet doesn’t elicit some sort of weight loss, it clearly won’t survive out on the market for very long. The problem is that fad diets are short-term solutions to a long-term problem. They also tend to associate weight loss success with some gimmick when, in actuality, decreased calorie intake is usually the “real” reason for shedding the pounds. So fad diets are effective to a degree, but I don’t know too many people that like losing some weight, gaining it back, and then jumping over to the next fad to start the process all over again. The way to lose weight and keep it off is through persistent behavior modification and lifestyle change. If you can make this type of commitment, you’ll be able to leave the fad diet books on the store shelves where they belong.