Recent / Top
The obvious options here are to ask him out, or to not.
Unless it's pretty clear that the feelings are mutual, and there's a good chance that it'll work down the road, I'd stick with just staying friends with them.
"Wait..wait...wait. Someone is telling you what you are and are not allowed to eat? Not a medical doctor? Okay, you know what? It's YOUR BODY. You're in control of it. You make decisions about it and for it. It doesn't belong to anyone else. "Trying to tell" you is right..."TRYING..."