People who combine exercise with dieting can double the metabolic health benefits of their weight loss, a new study shows.
It’s long been known that exercise doesn’t help most people lose weight. So why should anyone trying to shed pounds still keep exercising?found that people who combine exercise with dieting can double the metabolic health benefits of their weight loss.The study found that men and women with obesity and prediabetes who worked out while dieting improved their insulin sensitivity twice as much as people who only dieted, even though everyone lost comparable amounts of weight.
The experiment was small, involving only a total of 16 men and women, but the findings strengthen a growing scientific consensus that being physically active while we cut calories changes our bodies in ways that dieting alone cannot match.“It’s been reasonable to wonder” if we should bother exercising while losing weight, Klein said. The relationship between exercise and weight is famously uneasy, after all. “People are told to become physically active if they plan to lose weight,” Klein said.
The program lasted until each person was 10 percent lighter, which took most of them about five months. Before and after, the researchers drew blood, biopsied muscles, gathered fecal samples and checked people’s insulin sensitivity, fitness and other health measures.By the end, the men and women in the diet-only group were leaner, with better cholesterol profiles and other markers of enhanced metabolic health. Perhaps most important, their insulin sensitivity was markedly improved now.
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