We were recently told that or son is "pre-disposed" to develope diabetes because of family history. It was suggested to us that we remove as much sugar as possibe from his diet. Ok, sounds simple enough.

Exept that he is 13 and is often off with friends or grandparents and he drinks/eats his fill of sugar. I've tried talking to him, but his standard answer is "I forgot". And the grandparents are no help.

Any suggestions? How do I get him to take this seriously and make the needed changes before he ends up really sick or something?