Just for fun, give this a try: Go to your fridge or cupboard and grab a few pre-packaged items and bring them to your computer desk. Next, go to Google and start looking up any ingredient you do not immediately recognize. First investigate the ingredient, then search further for how those ingredients affect the human body. I promise you it will be a major eye-opener.
I must warn you, however. When I did this a couple years ago, I threw away half of the things in my cupboard – never to be brought back again.
Let me know in the comments how you fare… 😉