Anorexia nervosa is a serious and potentially life-threatening disorder characterized by an intense fear of gaining weight, dangerous weight loss, and distorted body image. Vitamin and mineral deficiencies have rarely been studied in anorexia patients, despite the severe weight loss from self-starvation that is characteristic of anorexia and other eating disorders. According to Dr. James Greenblatt, the one thread linking every single eating disorder is nutrition. Or, more accurately, malnutrition. Anorexia is a biological illness fundamentally sustained by starvation and malnutrition, whether self-imposed or the product of genetic, psychosocial, or environmental circumstances. Greenblatt consolidates research on the role of nutrition and nutritional deficiencies in anorexia that, at present, is poorly integrated in clinical practice. With over 30 years of practice and research, he is the founder of Psychiatry Redefined, an educational platform dedicated to the transformation of psychiatry.