If you are newly diagnosed the usual information is:buy a meter and strips, test everything you eat and you will find which foods you, personally can tolerate, everyone is different and reacts differently to most foods. Your BG levels should remain between 4.5 and 8.5 test before your first bite and again two hours later and if you are in the above figures you are ok to eat that food in limited amounts. Cut out bread pasta potatoes and rice as they are the main carb culprits. Instead of cereal for breakfast try eggs bacon 97% meat sausages mushrooms. It will fill you up and is carb free, all cereals contain sugar. It's the carb content you have to watch, I have followed the eating patterns on the forum, lost two stone and have kept it off without much effort for eighteen months. A glass of red wine I believe is good for you but not a bottle full, the real secret to losing weight is cut the carbs and test test test
PS cheese is good as are nuts and you are rights carbs do turn into nasties....carbohydrate which in turn turns into glucose