What is one potential effect of consuming more calories than expended?

Consuming more calories than the body expends can lead to weight gain. When calorie intake exceeds calorie expenditure, the body stores the excess energy in the form of fat. This process occurs because the body cannot use all of the ingested calories for immediate energy needs, leading to an accumulation of stored energy. Over time, this can contribute to an increase in body weight and potentially lead to obesity if the caloric surplus continues consistently.

The other options, while positive in nature, do not accurately reflect the consequence of this particular dietary behavior. For instance, consuming excess calories does not necessarily lead to improved energy levels; in fact, it can sometimes cause lethargy. Better digestion is not a direct result of excess calorie consumption; rather, it often relates to dietary fiber and overall diet quality. Enhanced metabolism generally occurs with a balanced diet and appropriate physical activity, not solely from an increase in calorie intake.