Food addiction is definitely real. I think it is much more challenging to deal with than drug addiction because at least one makes a choice to take a drug to satisfy the addiction. Food labeling practices today make it challenging to try to eliminate foods that we may experience adverse affects from. Sugar is a big food addiction as Joan states – but just as big of a problem and equally responsible for obesity, chronic diseases and brain disorders is MSG and the precursors that convert to MSG (glutamic acid). It’s hidden, ubiquitous and I guarantee we all are addicted to one degree or another to that little molecule. It excites our neurons and tells our brains that whatever food we are eating that contains MSG is yummy.