Extreme d dieting for weight loss poses several risks, including nutrient deficiencies, muscle loss, and metabolic slowdown. Severely restricting caloric intake can lead to inadequate nutrients essential for body functions, resulting in fatigue, weakness, and compromised immune function. Moreover, rapid weight loss may predominantly come from muscle rather than fat, damaging metabolic health. Following extreme diets can also foster disordered eating patterns and create a cycle of rebound weight gain. A balanced approach to weight loss, focusing on gradual, sustainable changes, is critical for long-term health.