I don’t think that body issues are only limited to women (or men) who actually have weight/shape issues.

Insecurity can strike anyone, especially in a society that puts such a high premium on how you look, how you’re dressed, how your hair looks, how good your makeup is, whether your body is shaped the “right” way... and it’s just as bad for people who make their living in front of the camera, whose careers literally depend on them looking slender and desirable. Frankly, I’m almost surprised that we hadn’t seen any hints of body issues in any of the characters previously.

My only problem with the plotline was that they forgot about it after a couple of episodes.