I can say from personal experience that having to deal with Type 1 diabetes and Celiac makes eating more of a chore than anything. Sometimes I feel like I have an eating disorder, since I can never put anything in my mouth without counting carbs, adjusting my insulin pump, and reading labels like a fanatic!
That said, all great advice. Like many kids with diabetes, kids with Celiac often go through a "rebellious" phase. Scare tactics do *NOT* work on kids. They can only deal with the here and now, and feel invincible.
What does work is family support. Yes, he will make mistakes. What you need to do is be there for him. It is *insanely* hard to manage Type 1 diabetes and follow a gluten-free diet as an adult, let alone a kid. Perhaps he is overwhelmed and just wants to be a normal kid. People have no idea how hard it is to live with Type 1 diabetes. It is *MUCH* harder to control and more serious than Type 2 diabetes (the adult onset obesity related kind, usually controlled with pills). Throw Celiac into the mix, and it can be the straw that breaks the camel's back.
What you need to do:
-Ditto on providing gluten-free snacks and foods for him to take with him *at all times*. Find out what gluten-free foods and foods in general that he likes. Try to use food that is naturally gluten-free, like peanuts, cheese, or veggie sticks, so he doesn't feel like he is eating "weird" special food around his friends.
-Take him and his friends out to go shopping for gluten-free foods and have a "tasting" party at home. Whatever they all like, have the moms keep some around so they can offer *all* the kids that when he comes over. Being different is a big problem for kids.
-Help him with his diabetes care, take over any tasks he has learned to do on his own to give him a break.
-Consider getting him an insulin pump in the future.
-Support groups and camps are a great idea.
-He also might be open to talking to a counsellor that is familiar with chronic illness in kids.
You son probably is sick of hearing that he will die young, go blind, lose a leg or his kidney's, or get cancer (from Celiac) etc. That's hard for a kid to deal with. None of this information is helpful, it doesn't make his diseases any easier to live with or control. I really think positive support with help more than anything else.
P.S. Make sure he is regularly screened for autoimmune thyroid disease. Celiac, Type 1 diabetes, and autoimmune thyroid disease (usually Hashimoto's) often occur together.
If you have any questions about insulin pumps, etc. feel free to PM me.
Let me know if there is anything I can do to help!