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 kinda difficult to enumerate all the foods that went poorly, and it doesn't always feel logical. We eat a lot (entirely?) home cooked meals, so it's not like i'm even talking fast food here.

Off the top of my head a lot of dark green vegs have been working well. Brassicas and the like.

I should note that they're still quite happy on the drug. They still eat normally enough that it's not like they're only eating broccoli or something. We just have to plan meals very purposefully. It's also a lot of trial and error to find the subset that works.

> On top of that, fatty meals, larger meals, and iirc fast carb heavy meals would all cause either nausea or diarrhea

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.

Interesting to know. My sample size of two both have the same behaviors, and the GLP subreddits seem to validate the side effects finds as well iirc, but i'm just an outside observer so i've not dug deeply on this.