, look to the third world where companies put melamine in their food to artificially inflate the protein count and fake baby formula with little to no nutritional value gets passed off as legit.
Never let the facts get in the way of a good story.
In 2008 the NZ dairy corporate Fonterra had a Chinese subsidary (Sanlu) in which they had a minority interest (less than 49%) that produced baby formula. The subsidary had supply from local farmers who would get increased payouts with milk with more protein in it.
These local suppliers found that melamine was a good way of 'supplementing' the protein count; this was not detected as no Dairy company (at the time) tested for melamine as it is usually used in making benchtops etc (amongst other things I think) and normally does not come anywhere near the dairy supply chain.
So, no, the 'evil corporate' did not intentially poison its consumers, the dodgy suppliers did.
I am no shill for Fonterra, in NZ we have serious issues with freshwater deregradation due to intesifying dairying which Fonterra is accused of reacting slowly to.