so, there was a problem when these girls would go to eating disorder treatment centers (think of rehab, but like... for eating disorders). the vast majority of the time, the staff would not allow them to stay vegan. they were given food to eat, and that included animal products.
of course, none of them were happy about this, and neither were their followers. this was cruel & unethical, they claimed, almost downright oppressive. back then I mostly agreed with them — after all, it's perfectly easy (yes, it is) to eat a nutritious, high-calorie vegan diet.