A common mistake made during weight loss dieting is excessively restricting caloric intake, which can lead to nutrient deficiencies and hinder metabolism. These extreme diets often don’t provide sufficient energy for daily activities, resulting in decreased metabolic rate and muscle loss. Lack of variety can also lead to boredom, increasing the likelihood of falling off the diet. Instead, a sustainable approach involves gradual changes, focusing on whole foods, balanced macronutrient intake, and maintaining enough calories to support body functions while still promoting weight loss.