Just start on semaglutides, and eat in smaller portions like the women critics he describes in the article do. I think quitting a good critic job for your health is pretty silly when there are modern workarounds that mostly solve the issue.
He could just copy this strategy. If he doesn't have the will for it, semaglutides would make it really easy. You still enjoy and taste food the same on it, you just get full quicker.
So there is an easy solution to his problem.