Hi Ned, welcome to the forum!
This forum is full of good advice and tips!! my advice would be to stat a food and exercise diary so you can see exactly what you are currently doing and work out what you need to change.
I would say from what I know about blood sugar levels, that you would need to cut right down on highly refined carbohydrates which are easily converted into sugar like substances and are what is called high GI (Glycemic Index). In other words they're like the body's equivalent of rocket fuel, a quick fast, hot burn. This type of foods are white flours, cakes, breads (especially white bread), sugar, lollies, chocolate etc
Try focussing on low GI things - these things give your body energy over a longer period which keeps your blood sugar leveller rather than a huge great spike and then a drop off. This is this category are essentially whole grains and natural foods, low processed foods. Things like, heavy, wholemeal or grain breads (not the squooshy stuff), oats, vege, fruit, legumes (beans, lentils etc) and so on.
Basically mu advice would be to try and eat things that are as close to having been growing/running around as possible. the less processing invovled the better.
And as for getting your weight down, the diet changes will help, but exercise will doubly healp and in the process also improve your cardio-vascular fitness.
Any other specific questions, feel free to ask!!
35kg lost. (November 2005 - October 2006)
15kg gained again (as at October 2010).
Back to the drawing board - Let's do this thing!
"You can't change the winds, but you can change the sails"
"Reach out and take control of what lands in your lap"