My doc gave me a short list - obvious stimulants, such as tobacco, caffeine, etc. Alcohol is a biggie - it is a mental depressant but a heart stimulant. Anything that dehydrates is going to aggrivate them too - super salty stuff. I notice if I go out for sushi (soy sauce!) I will get PVCs if I don't make sure to drink tons of water. Cold medicines, he said, I should also avoid, and chocolate, because it has caffeine in it.
Personally, and I don't know if it's just me or what, but artificial sweeteners and lots of preservatives (msg) don't seem to sit well with me either.
Thanks for the post, but I'm curious about something - salt is not supposed to dehydrate; it's supposed to help a person stay hydrated. Pro golfers and some extreme runners take salt pills to help their bodies hold onto water while competing.