I've reversed my Type 2 but not by diet alone. Weighing in at 18.5 stone, i was prescribed 4 Metformin per day. I changed my diet drastically and began an exercise regime; just 15 mins at first then gradually working up to an hour. The weight began to drop off and, as it did, so my intake of Metformin was decreased one by one, until it was deemed i no longer needed to take them. In total, i lost just under 6.5 stone in about 18 - 20 months and, although i have put some of that weight back on, i have maintained my diet and still have no need of the medication. I had my annual review just last month and everything is in good order.