A growing body of evidence indicates that Alzheimers disease (AD) its precursor mild cognitive impairment (MCI) and other conditions that interfere with cognitive function can be added to the list of "diseases of civilizationthat largely result from diets and lifestyles discordant from those we are presumed to be best genetically adapted to. These debilitating conditions which interfere with learning memory processing and behavior are believed to be linked to a failure on the part of the brain to properly metabolize glucose. The evidence linking poor glucoregulation and hyperinsulinemia to cognitive impairment is so strong in fact that some researchers have taken to calling Alzheimer's disease type 3 diabetes.