Some people have complicated dietary needs.
If you want to cook for them, much sure you understand what they are.
The basic way you do this is by
- ask them what they can and can’t eat
- believe them
- make food they can eat
- don’t make food they can’t eat
- if you aren’t sure, ask
- If one of the ingredients is something you haven’t talked about, ask
It can also help to say that you will not be offended if they need to bring their own food.