Collecting this in one place because it comes up every few weeks and the answer is always assembled from scratch. It is about mood and mental health, and it is deliberately narrow — everything I am not confident about is marked as such.
What is actually established
The mental-health dimension is under-measured in the trial literature and the reports here are consistent enough to take seriously. On the positive side: reduced anxiety around food, better self-image, more confidence. On the difficult side: grief for the years lost, identity disruption, relationships built around eating, and the loss of food as a coping mechanism with nothing put in its place. Rarer but real: anhedonia and emotional flatness. Regulators have started asking for validated patient-reported outcomes in this class; the existing data gap is not evidence of absence.
The condition it depends on
For anyone with an eating-disorder history this needs a clinician in the loop rather than a forum. The same drug can be therapeutic in binge-eating disorder and actively harmful in a restrictive disorder.
What I am not sure about
The narrow version of the question is how people separated a drug effect from the ordinary consequences of a large deficit and disrupted sleep, because I cannot. Tell me what I have not thought of.
— andrew_nyc · corrections welcome and will be edited into this post with credit