While I agree that the food (and almost every other) industry is over-regulated, food regulations do actually do some good.

Food service establishments may not want to intentionally poison their customers, but the truth is, a LOT of people in food service have absolutely no idea about how to keep food safe, until they're trained to do so. Very simple things in food safety, like cooling or cooking meats to proper temperatures, are REALLY important, and would be ignored (out of ignorance, or simply cost cutting) without regulation.

There are also the situations with large chains like Chipotle, who simply don't have the ability to test every bit of food they buy, and often find themselves distributing contaminated vegetables to their customers. Without our food regulations, it would be a lot more difficult to trace these poisonings back to Chipotle, find the source of the problem, and correct it. Without regulation, Chipotle could easily just buy out the stories of their E.Coli outbreaks and keep serving contaminated food, as long as the profits outweighed the lawsuits.