Multiple outlets report that experts say weight becomes harder to shift as people age, largely because daily calorie needs change over time. The articles describe how the body typically uses fewer calories in later adulthood, so maintaining or losing weight may require different eating patterns than those that worked at younger ages.
The coverage focuses on biological and lifestyle reasons for this shift, including changes in metabolism and overall energy expenditure. While the sources share the same broad message—that calorie requirements generally decline with age and that this can affect weight-management outcomes—the emphasis varies. Some pieces frame the issue as a practical challenge (the same calorie-cutting approach may be less effective), while others discuss the underlying physiological changes that drive that reduced caloric demand.
