Consuming such a low caloric intake, drastically below recommended daily amounts, leads to rapid weight loss due to a severe calorie deficit. This rapid weight loss often comprises water weight and muscle mass, rather than fat. The body enters a starvation mode, slowing metabolism to conserve energy. Example physiological and psychological effects may include fatigue, dizziness, headaches, irritability, and nutrient deficiencies.
Understanding the consequences of extreme calorie restriction is vital for promoting healthy weight management strategies. While rapid weight loss might appear attractive, the detrimental impacts on overall health and well-being outweigh any perceived benefits. Historically, severe calorie restriction has been associated with eating disorders and unsustainable dieting practices. Promoting informed dietary choices requires clear communication about the potential harm of such restrictive diets.