2007-04-10 Diets don't work in long term, says survey


Diets are not a good way to lose weight in the long term, according to researchers. They found that, though dieters can lose significant amounts of weight in the first few months, most will return to their starting weight within five years.

"Diets do not lead to sustained weight loss or health benefits for the majority of people," said Traci Mann, a psychologist at the University of California, Los Angeles (UCLA). "You can initially lose 5 to 10% of your weight on any number of diets, but then the weight comes back.(Read entire article)

2007-04-11 Diets Don't Work Long-Term - Most Who Go on Diets Gain Weight Back; Lifestyle Change Needed


Most people who go on diets soon gain back any lost weight, a UCLA study suggests.

Traci Mann, PhD, associate professor of psychology at UCLA, was teaching a seminar on the psychology of eating when she noticed something odd about diet studies. Few of the studies followed up on dieters for more than six months. Even fewer followed dieters for a year or more.

Mann wondered what, in the long term, really happens when people go on diets. So she and her students tracked down 31 studies that, one way or another, had at least one year of follow-up data. They were interested in just one number: the percentage of dieters who, over time, gain back more weight than they lose. (Read entire article)