Exactly, it's an act of free will to stuff Big Macs down your gullet.
A Big Mac is the byword for unhealthy food, but it's got 24 grams of protein, which is the quintessential food, absolutely necessary for all body processes, most importantly, growth, repair and immunity. If everybody in the Third World could get one Big Mac ever day it would probably reduce the incidence of disease in those countries by a significant amount.