Derren Brown shows how easy it is to manipulate your thoughts, by the use of subliminal images.
I may have mentioned it somewhere on this blog, but everyone is different. The reactions of the kids in the "I ate all your Halloween candy" video in the previous blog post varied from total melt-downs, through feigned deaths, through tears, to "That's all right!". Candy/sweets have different importance to different people and people's suggestibility varies from "Very easy to manipulate" to "Very hard to manipulate".
There's engineering of foods to be as moreish as possible. "The trouble is, they taste too good!" (Crunchy Nut Cornflakes), "Bet you can't eat just one!" (some savoury snack made from refined starch, salt & flavourings) and "Once you pop, you can't stop!" (Pringles). As Harry Hill once said "The problem with heroin is, it's rather moreish!" Although addiction to pure table sugar isn't a thing, addiction to hyperpalatable foods is a thing (which can be reduced by Naltrexone). See Food cravings engineered by industry and Sugar addiction: pushing the drug-sugar analogy to the limit.
Then there's the incessant marketing, including direct adverts, sponsorships, product placements, celebrity endorsements, tie-ins etc. See The Money Spent Selling Sugar to Americans Is Staggering and It’s Not Your Imagination: Celebrities Hawk Pretty Much Only Junk Food.
Then there's the
1. Water-down Dietary Guidelines so that crap-in-a-bag/box/bottle (CIAB) meets them. As people get fatter and sicker, the Guidelines and the government get the blame.
2. Subsidise the ingredients of CIAB so that it's cheaper than produce.
Then there's corruption of science e.g. getting doctors to advertise cigarettes years ago. Organisations with vested interests are created, to promulgate conflicting dietary information. Is it any wonder that the public distrust science and scientists?
Edward Bernays' manipulation techniques have worked exceedingly well. If you're too fat and someone says to you "Nobody made you over-consume that crap", point out the above.
What can you do? You can't sue Food Product manufacturers, as their products don't immediately harm you. See How Ultra-Processed Foods Are Killing Us. Hit them where it hurts i.e. in their bank accounts, by eschewing CIAB and basing your diet on whole, minimally-refined animal and vegetable produce. CIAB should be treat foods, not staple foods.
Finally, here's a nice video on how to form good habits for life.
Cont'd on Free will? It's just an illusion! How the Food Product Industry gets people to dance to their tune, part 4.