Low-calorie diets can have significant implications on metabolism, potentially leading to a slower metabolic rate. When the body reduces calorie intake, it may enter a state of starvation mode, conserving energy and making weight loss more challenging over time. Prolonged calorie restriction can also result in nutritional deficiencies, affecting overall health. Furthermore, as muscle mass decreases, the body burns fewer calories at rest, complicating weight management efforts. A balanced approach with adequate calorie intake and nutrition is essential for sustainable weight loss and metabolic health.