One of the most significant consequences of yo-yo dieting is the body's adaptation to perceived starvation. When calories are restricted for extended periods, the body interprets this as a threat to survival. In response, it shifts into what can be termed "starvation stress mode," a state where metabolic processes slow down to conserve energy.

During this mode, the body becomes highly efficient at storing fat, making future weight loss even more challenging. Moreover, the stress hormone cortisol rises, further contributing to weight gain, especially around the midsection. This hormonal imbalance not only affects weight but also has a profound impact on digestion.