New findings are a step towards understanding why some people gain more weight than others, even when they eat the same diet. The research indicates that some Danish people have a composition of gut microbes that, on average, extracts more energy from food than do the microbes in the guts of their fellow Danes. Part…

Paying cash to people with obesity for losing a specific amount of weight or completing weight-reducing activities works better than many other methods, a new study shows. Cash beats offering stand-alone free tools, such as weight-loss programs, diet books, and wearable fitness trackers, the researchers report. The researchers tracked the weight-loss efforts for up to…