My doctor said I was diabetic at 7.5 with my first hba1c I have ever had. Fasting was also in the high 8's. But I'm also in Canada so might have different standards. But with some diet and exercise I was able to get that down to a 5.5 in only three months. It wasn't even that much exercise. Only a 30 minute walk a day (about 1.5 km).