ARFID is a condition characterized by a persistent failure to meet appropriate nutritional and/or energy needs due to restrictive food intake, fear of certain foods, or a lack of interest in eating.

Individuals with ARFID may experience significant weight loss or failure to grow and develop, and may also have difficulty with social interactions related to food.

It is different from anorexia nervosa, as individuals with ARFID do not have an intense fear of gaining weight and do not have a distorted body image.