Weight loss and regain: a complex issue

A recent study suggests that the effects of losing and regaining weight—often called the yo-yo effect—depend largely on a person's starting weight and the support they receive during their weight management journey.

Experts highlight two scenarios

Researchers Norbert Stefan and Faidon Magkos from the German Center for Diabetes Research and the University of Copenhagen distinguish between people with obesity and those at a normal weight, noting that the consequences of weight cycling differ in each case.

Obesity and repeated weight loss

For people with obesity, the study indicates there is not enough evidence to conclude that repeated attempts to lose weight will always lead to worse long-term outcomes. This means the fear of the yo-yo effect should not stop them from seeking treatment.

Normal weight and unnecessary diets

At a normal weight, repeated dieting without a clear need raises concerns about muscle loss and the potential for fat to return. This highlights the importance of evaluating the reasons behind weight fluctuations and whether the approach is sustainable.

Focus on sustainable habits

The researchers emphasize that the goal is not to follow extreme diets but to assess what factors may have contributed to weight regain, such as the rate of weight loss, physical activity, sleep, and psychological well-being.