Extreme dieting or fasting poses numerous risks. These strategies often lead to nutrient deficiencies, resulting in fatigue, weakened immunity, and poor bone health. Additionally, drastic calorie restriction can disrupt metabolism, causing the body to enter a starvation state. This may lead to binge eating or develop unhealthy relationships with food, increasing the risk of eating disorders. Moreover, extreme diets can affect mental health, triggering mood swings, anxiety, and depression. It's crucial to adopt balanced, sustainable eating habits for long-term well-being.