weight loss

Fasting every other day is no better for losing weight or keeping it off than restricting calories every day, a study suggests. And it's yet another example of how hard it is to study fasting.

Earlier studies suggested that most people put the pounds back on, but a large study that followed people for a decade after bariatric surgery found that the vast majority avoided gaining weight.

New research into the lives of past Biggest Loser contestants found many regain much of the weight they lost in the show --sometimes 100 pounds or more — because their biology works against them.

Eric O'Grey was 51, obese and suffering from diabetes and high cholesterol when he took home an overweight shelter dog. Now the duo are headlining a campaign on how pets improve humans' lives.