South Beach Diet works wonders for a diabetic on a diet

If u're diabetic, any diet u try should be prescribed by a nutriologist, since they're different for non diabetic people
The link will give u some useful information, take care!

see a dietitian. She will set up a calorie count diet for you and give you the guide lines. Typically, 1800 calories a day is the best plan.
However, if you have a hard time losing weight, you may have an allergie to bread products. I know when I eat bread, I start gaining weight. so I don't do bread especially store bought bread. too many chemicals in it. I do well on Low Carb, High Protein. But I am sorry to say I got off of it because my will power was weak one day, and I have not been able to get back on it yet.

This question has been answered a bunch of times in this forum.
If you are trying to cut carbohydrates – try South Beach. If you are simply trying to cut calories – try Weight Watchers.
But you really need to consult with your endocrinologist or a nutritionist to determine if either plan would cause any conflict with the medications or diet regimen that your doctor put you on to control your blood sugar.