Well, if you want to get mad for about an hour and a half - watch this movie.
Good information - clearly stated - and should be required viewing in some mandatory-for-graduation high school health class.
As a country, we have really messed up - and by extension (due to the negligent following of the USA’s non-scientifically backed guidelines) messed up a lot of the world.
If you have been keeping yourself up-to-date on this site, there might not be much new for you technically. But, if you are the kind of person that wants to know how things (ideas) evolve and grow due to ego and $$$ - to avoid falling into the traps they create - it is a good mental exercise to put yourself through.