Are we fooling ourselves?
According to a 2010 Consumer Reports survey (http://www.consumerreports.org/health/healthy-living/diet-nutrition/diets-dieting/healthy-diet/overview/index.htm) , ~90% of Americans considered their diet to be “somewhat” to “extremely” healthy with only ~11% saying their diet was “not very” or “not at all” healthy.
Based on self-reported heights and weights, 57% of this same survey group was overweight or obese with only 35% being considered an appropriate weight. Assuming all 35% of the appropriate weight group ate a “somewhat” to “extremely” healthy diet, then close to 85% of the people who were considered to be at an inappropriate weight reported that they too ate a ““somewhat” to “extremely” healthy diet with only about 16% of this group saying their diet was “not very” or “not at all” healthy.
It is assumed that many of these same people voted in the last election.