I consider the obesity epidemic a failure of free markets to offer healthy food without government oversight and a failure of individual freedom to choose better foods for themselves.
Yes, I know it...
The failure is of the non-free-market legal system preventing tort against pollution, poisoning and protecting monied interests. The mechanism under which poisons and low grade calories are added to the food supply is through government subsidized research institutions whoring themselves to big pharma and big ag to buttress their profiteering. The problem is fascism, not free markets.