The risks of extreme dieting for mental health can include increased irritability, anxiety, and mood swings. Severe calorie restriction can lead to nutrient deficiencies, which negatively impact brain function and emotional well-being. Additionally, the obsession with food and body image associated with extreme dieting can trigger or exacerbate disorders like anorexia and bulimia. Sustainable, balanced eating patterns promote better mental and physical health by focusing on nutrition rather than restriction, fostering a healthier relationship with food.