At first, food was hunted for but as societies developed people bought from a nearby market and after the industrial revolution and a new form of living people had to buy their food in impersonal superstores where there were aisles and aisles of food from all over the country and all over the world.
People at the time of trading and local markets certainly did not think to wonder about what it was they were eating because they trusted the people they bought the food from.
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