Social Ramifications of an "Industrialized" Diet

• If we can become thirsty on a raft in the middle of the ocean, do our bodies also crave nutrition when awash in a sea of "empty calories", i.e., foods that have calories but not the balance of vitamins, minerals, and other nutrients needed to process them into useful energy and building materials?
• Does this hunger for nutrition cause us to overconsume foods that lack the nutrients we are craving? People adrift at sea will eventually gorge themselves on sea water when the urge to drink becomes too great, even though this almost always ensures further dehydration and death.
• Can and are these cravings for nutrition being exploited by the food industry to encourage overconsumption? Unfortunately, improving their "bottom line" through the sale of processed foods (and the vitamins and nutrients extracted from them) may have the undesirable effect of also increasing our "bottom's line" and "waistline" as well.
• Are fat-soluble vitamins and essential fatty acids taken out of the fat-free foods with the fat, and if so, what happens to them? Are they put back?
• "What happens to fat-soluble nutrients in our diets when one pushes a fat-soluble-vitamin-grabbing fat substitute through one's intestines?"
• Is it easier, safer, and more cost effective to i) take the fat out of foods, ii) the fat-soluble vitamins out of the extracted fat, and then iii) to put, hopefully, all the fat-soluble nutrients back into the food or iv) at least into supplement pills to sell to the public, and v) to treat those individuals for disease that do not get adequate nutrition or is it easier and more economical to provide fresher, more nutritious (vitamin and mineral rich) food that does not require as much processing nor as many preservatives to make it "appear" fresh?
• In a related fashion, how does the "total cost" of whole grain bread compare with the cost of "industrialized" white bread plus the cost of the removed bran and germ plus the cost of vitamin pills and other nutritional supplements (to ensure, hopefully, the replacement of any other nutrients that were lost in the "process" of making white bread) plus the added medical costs for those who don't consume vitamins, bran, and wheat germ? Would "ENRICHED" on the label of breads be more accurately represented by the label, "DEPLETED and PARTIALLY-RECONSTITUTED"?
• The problems with processed foods ("industrialized diets") seems to be obvious and bordering on common knowledge, so how do we go about changing the quality of the food available for us to eat? We vote most effectively on this issue with our pocketbooks at the grocery store.