The company studied the harm, then argued about the framing.
Leaked internal slides showed Meta had spent years researching Instagram's effect on teenagers. One 2019 slide, as reported: "We make body image issues worse for one in three teen girls." The research was not public until it leaked.
Meta's response is worth reading too — it argued the reporting cherry-picked findings, and published annotated versions of the decks in reply. Read both and judge.
Coverage Meta's reply