Hi Richard, I'm concerned that you are getting directions to eat food that will spike your blood glucose! (ie carbohydrates). But you've come to the right place to learn more about this from those who really know - other diabetics. Below is good general advice:
http://www.diabetes.co.uk/forum/threads/basic-information-for-newly-diagnosed-diabetics.17088/
http://www.diabetes.co.uk/forum/threads/basic-information-for-newly-diagnosed-diabetics.17088/