Question

josephs bmi is 23. when hes under a lot of stress, he eats a large amount of empty - calorie foods. soon after eating these foods, he goes to a bathroom and makes himself vomit. based on this information, joseph probably has

glycogen storage disease.
anorexia nervosa.
cystic fibrosis.
bulimia nervosa.

Explanation:

Glycogen storage disease is related to glycogen metabolism issues, not the described eating - vomiting pattern. Anorexia nervosa is characterized by restricted food intake and extreme weight loss, which is not the case here as he is eating (even if purging). Cystic fibrosis is a genetic disorder affecting the lungs and digestive system, not related to this behavior. Bulimia nervosa is marked by episodes of binge - eating (eating a large amount of food) followed by purging (such as self - induced vomiting), which matches Joseph's behavior.

Answer:

bulimia nervosa.