Aperson who severely restricts food intake, has a distorted body image, fears weight gain, and has a bmi of 19 may be diagnosed with
purging disorder.
bulimia nervosa of low frequency.
bulimia nervosa of limited duration.
atypical anorexia nervosa.

Atypical anorexia nervosa.
This is a disorder characterized by restricted caloric intake relevant to the requirement and fear of weight gain.

Depends on which disease, but as a general rule eat healthy. many vegetables.                                                        hope my answer has come to your . you for posting your question here in we hope to answer more of your questions and inquiries soon. have a nice day ahead! : )     (p.s mark as brainliest if )