Indigenous people of South America chewed on coca leaves for 1000s of years. Then humans started processing it into cocaine. It became a problem then. We have e

Indigenous people of South America chewed on coca leaves for 1000s of years. Then humans started processing it into cocaine. It became a problem then. We have effectively done the same thing to foods. Extracted the sugars and fats into refined form and combined them to create tasty but energy dense food with not much other nutrition.