As well as the examples of wrong health information which you gave, it is now clear that even some of the respected medical journals have published reports and articles that were tainted.

Tainted how?

The research results were agreed upon in advance by the companies or vested interests which were paying for the writing. One example from Sept 2017 is this: Journalistic Fraud Rampant in Professional Medical Journals.

I also write about health topics.
https://steemit.com/@garyharvey/

Cheers,
Gary