What is one of the main consequences of yo-yo dieting?

Yo-yo dieting, often characterized by cycles of losing and regaining weight, can have significant adverse effects on metabolic health. One of the main consequences is a negative impact on metabolic rate. During periods of weight loss, the body can adapt by decreasing its energy expenditure, which means it burns fewer calories at rest. When weight is regained, the body's metabolic response does not necessarily return to its previous state, leading to a lower overall metabolic rate over time. This can make future weight loss attempts more difficult and can contribute to a cycle of weight gain.

The physiological changes that occur with repeated weight cycling can include loss of lean body mass, which is metabolically active tissue, further compounding the problem. This phenomenon underscores the importance of adopting sustainable weight management practices rather than engaging in short-term dieting strategies that can lead to this cycle of weight fluctuation. In contrast, enhanced metabolic rate, stabilized body composition, and increased long-term weight loss would suggest outcomes that promote overall health and effective weight management, which are not typically associated with yo-yo dieting.