I suggest you read this book...It's a REAL EYE OPENER!
https://www.amazon.com/Secret-Life-Groceries-American-Supermarket/dp/0553459392/ref=pd_lpo_14_t_0/132-9933883-8970646?_encoding=UTF8&pd_rd_i=0553459392&pd_rd_r=02f04c4b-0795-45ba-a3de-56f36698cf29&pd_rd_w=QagpY&pd_rd_wg=ZTGo2&pf_rd_p=7b36d496-f366-4631-94d3-61b87b52511b&pf_rd_r=XA71R92TPJQ495VP0MPA&psc=1&refRID=XA71R92TPJQ495VP0MPA
Fascinating stuff worth reading!
Pffft. Living it for 15 years was enough for me, don't need to real about it.