Is it your A1C number that's 4.3? The latest cutoff from the American Diabetes Association for pre-diabetes is 6. They think this number is a better diagnostic than blood glucose, since that is highly variable. A1c, like fructosamine in cats, is a better long-term indicator of glucose regulation in humans.

(I don't have any human family diabetics, but had a diabetic cat for 3+ years.) Good luck!

One of my rescue friends was pre-diabetic; she took off a bunch of weight and is now in a good range, so it can be done!