Can men and boys develop eating disorders?

Yes they can

Explanation:

anyone can develop an eating disorder due to restrictive eating, compulsive eating, or irregular or inflexible eating patterns no matter the gender.

Despite the stereotype that eating disorders only occur in women, about one in three people struggling with an eating disorder is male, and subclinical eating disordered behaviors (including binge eating, purging, laxative abuse, and fasting for weight loss) are nearly as common among men as they are among women.

answer; /// the above statement is (false); good luck

i think she would gain 18 grams