I have had type II diabeties for 10 years now. My Dr. can't beleive that I don't need medication now. My blood sugars are in the 80s to 90s. He says diabetics always get worse and need medication and finally (if they live long enough) insulin. I saw him today and he was amazed at my readings. If your sister in law starts to have problems she will probably be more interested in changing her program. You have planted a seed. Give it time to grow.