Earlier quoted context omitted.
> many of the foods they still wanted would just make them sick immediately or hours later Can you name some of the foods? Never been on GLP-1 drugs. But a good amount of fast food leaves me feeling lethargic and, if I eat it too quickly, nauseated afterwards.
Their doctor suggested that they would drop a lot of weight fast, and they wanted to make sure they focused on eating lots of protein. So that's one restriction, medically prescribed meal types. On top of that, fatty meals, larger meals, and iirc fast carb heavy meals would all cause either nausea or diarrhea. Interestingly their mother is on the identical same generic GLP-1 shot, and has mostly the same side effects…
It's worth pointing out that it's a minority of people who get any side-effects. I felt weird the first few days, but after that I only got myself into trouble if I'd forgotten to eat all day and then was faced with a hyper-satiating food with no natural portions -- an on-table buffet, someone placing endless bowls of chips and dips in front of me at a party, etc.