Most folk, myself included, were raised on such processed foods. Since most humans are creatures of habit as accurately noted by the elite they maintain these misguided habits throughout life. I had some fruits and vegetables growing up but a lot of processed food and of course milk.
Food is a basic of life yet most take it for granted. The fact is that just about all sources of food, including fruit, have been tampered with - either genetically modified, selectively bred, or sprayed with chemicals. I can go to the store and buy oranges without seeds. Does that happen in nature? The grapefruit I get are covered in wax/stickers. Also since the water has been poisoned on a large scale the food too takes up those poisons since water is used largely in the cultivation of fruits and other plants. All invading armies/dictators have known that to control a people you must control their basics such as food and water.