Yep, it started with fluoride in water before I was born, saccharine, aspirin, eggs, bacon, charcoal broiled meat, salt, coffee, tea, red wine, etc. All went from good to bad, back to good and some back to bad. I was trained as a scientist, biology, chemistry, and still follow the various studies. Almost all are pure crap and have little to no effect other than for people who are genetically inclined to bad effects or through over exposure.
For years I have said, in most research projects ‘the person/entity funding the research will get the result they are seeking’. And after that one ‘if you are frightened by a research project’s result, wait 6 months and some other research project will likely come up with the exact opposite result’.