I agree that it is more the norm to just prescribe meds, but is up to the patient to ask about a different solution. I would give this doctor a second chance....go back for another A1c after 90 days, and if it's improved, then tell the doctor what you did, and he should agree that you don't need insulin.

When I improved my A1c with LC and exercise, my cholesterol also improved. My doctor was so amazed he asked me what I did to get that, so your doctor may be impressed, too!

Medicine is OK when necessary, but patients should be more proactive in their care.