Hi katybella,
Never heard of it, which kind of says it all. If these things ever worked, we'd hear about it soon enough.
How much weight do you want to lose? I lost 4 stones 7 years ago, not by eating fewer calories, but by eating better calories. Don't fall into the trap of eating low-fat branded products whatever you do. These will probably make your situation worse, and the added starches and sugars certainly won't help you diabetes at all.
All the best,
fergus