Like "Thank you for your advice. I think I should change my wording and way of thinking. I can't take control of his illness but I would like to give him the support he needs so he can take control of it or even just manage it and take care of himself. It is so hard not to nag when I see him eating things I know he should not be eating, but I believe you are correct and that I will have to learn to let him figure it out without my input. Thanks!"