Why are you on a “good old days” forum if you are a big sissy about food? The whole point of this thread is that life in the “old days” featured lots and lots of threats but we all happily survived. Everything you name - if eaten in moderation - will cause no harm.
By the way, the McDonald’s hamburger has been totally debunked.
Sorry - got distracted by the lead paint comments. Didn’t mean to hijack the thread.