You'll have to let a lot of the stuff in the last paragraph go. When I have the girls it is my responsibility to make sure they get their meds, their rest, their nutrition.
I don't mind emails saying the doctor says they need this or that or can you please do this or that. But I would resent being dictated to.
I'm not saying you dictated to him, but unless he is seriously endangering S then you'll have to pick your battles.
I don't think STBXW feeds the girls very well and she definitely isn't fostering a routine or lifestyle of exercise for them.
So on my time we go to the gym and gorge on fruit and only have french fries one day a week.
Me: 47, Ds 17-13, D final 6-11 http://tinyurl.com/yk4e2tz http://tiny.cc/thread2 http://tinyurl.com/ydtphqu http://tinyurl.com/thread4 http://tinyurl.com/3sm78k6 http://tinyurl.com/thread6