I would recommend reading Dr. David Perlmutter's book "Grain Brain". He calls Alzheimer's type 3 diabetes. In the book he details how to lower blood sugar, and why. The book also has meal plans. It is very good read. If you wish to take a break from Xmas shopping, here is a awesome video to watch from the Ancestral Health Symposium in 2011 by Andreas Eenfeldt, MD. It is about how we can end the epidemics of obesity and diabetes that are continuing to spread across the western world.