AIBU to take my son to McDonalds often?
DS is 9 and has a wide range of health issues and also autism ( he is developmentally 9-18 months) and only eats a handful of things ( Custard, Chicken fillets from the butchers, chicken nuggets ( not from McDonald's) , Completely plain burger buns from McDonald's and walkers salt and vinegar crisps) That is his full diet... we have a dietitian.
( before has gone for days without eating because his " safe" food wasn't available as we were trying to encourage him to try new things )
For a while he has been refusing food and as a result we are all extremely worried as he has lost a lot of weight and we are at the point may have to take him into hospital and there is talk of a possibly feeding tube ( which he won't keep in / cope with well at all)
However today He has shown some interest in eating some burger buns .. AIBU to take him to McDonald's and just buy him a few burger buns to simply try and get him to put weight on and eat something?
I feel awful as I know he doesn't have the best diet and burger buns are far from the best but I really don't want him to loose any more weight( he hasn't had anything to eat since Thursday morning) and end up in hospital but I feel bad giving him just a plate of buns!
Please help .. I want to do what's best for him but feel absolutely awful which ever way I do it 
