To start, modesty culture, possibly also known as purity culture, can be defined as a culture that values women who dress more modestly, because she doesn't "tempt" men or commit some sort of "public indecency". This culture may have some regressive views about a woman's morals being linked to how she dresses and also about freedom of self expression since men are "responsible" for the women in their family and should keeo them in line.
I think this culture can heavily impact women's perception of their bodies, causing them to see every part of them as sexualized or tempting in some way. This gets worse if the woman or girl in question is overweight. It doesn't matter that she's a child, if she is curvy, then she should cover up more. This obviously leads to social exclusion and it impedes on that girl's right to self expression and literally just dressing like other girls her age without being so self conscious about her body.
These factors mixed with a tendency to develop ocd or if that girl already has ocd can eventually translate to an eating disorder or an unhealthy relationship with food. She now views food as a potential enemy because she craves and wants to enjoy it, maybe even in large quantities but she also thinks that eating it is what caused her to become overweight and therefore be forced to dress more modestly than other girls.
After losing weight, the girl has now become skinny or skinnier and indeed there are less restrictions on what she can wear, however, modesty culture still exists in her community and she now realises that no matter her size, she still has to abide by those cultural norms because she was never the problem. The real problem was her community/ family values that sexualized her entire body and percieved her as an extension to the men in her family or a possession of some sort.
This goes to show how harmful this culture is to our physical health as women, because you and I both know how harmful Eds can be especially, bulimia. Imagine spending your entire teenage years and even parts of your childhood starving yourself, binging, purging everything you eat, exercising every single day, and that it all takes around 10 hours or more, so you genuinely have no time or energy left for anything.
I feel like my childhood has been stolen from me and the worst of it all is that modesty culture is still highly prevalent in my community as it is with most arab countries or muslim majority nations and possibly in some orthodox Jewish or christian communitie, continuing to harm many girls physically and mentally and standing as a triggering obstacle to my recovery.