Is obesity caused by "food addiction"?

Medical News Today reports (via):

Some people really are addicted to foods in a similar way others might be dependent on certain substances, like addictive illegal or prescriptions drugs, or alcohol, researchers from Yale University revealed in Archives of General Psychiatry. Those with an addictive-like behavior seem to have more neural activity in specific parts of the brain in the same way substance-dependent people appear to have, the authors explained.

It's a bit like saying that if you dangle a tasty chocolate milkshake in front of a pathological eater, what goes on in that person's brain is similar to what would happen if you placed a bottle of scotch in front of an alcoholic. . . .

The authors believe that no studies had so far looked into the neural correlates of addictive-like eating behavior.

Those researchers say:

One-third of American adults are now obese and obesity-related disease is the second leading cause of preventable death. Unfortunately, most obesity treatments do not result in lasting weight loss because most patients regain their lost weight within five years. Based on numerous parallels in neural functioning associated with substance dependence and obesity, theorists have proposed that addictive processes may be involved in the etiology of obesity.

Food and drug use both result in dopamine release in mesolimbic regions [of the brain] and the degree of release correlates with subjective reward from both food and drug use.

The article goes on to cite some scientific research, but it's all about the general phenomenon of food addiction. I'm not seeing any correlation or causation between the addiction and obesity.

My question is: if food addiction is the real problem, aren't we all suffering from it?