This used to be common in parts of Europe as well. There is a book called From Poison Sweets to Counterfeit Coffee—The Dark History of the Food Cheats, from the food journalist Bee Wilson [1], which tells (among many other things) a lot of stories about arsenic poisonings in 19th century London, caused by the usage of certain red dyes in food. The saying that certain regulations are written in blood comes from these kinds of stories.

[1]: https://www.goodreads.com/book/show/2507738.Swindled