People used to eat all sorts of healthy food prior to the industrial revolution, but polio still existed. Do you know what eradicated polio in the West? Vaccinations.
Medicine carries risks. You can cherry pick isolated examples of serious adverse events, however there is clear evidence of the overwhelming benefit of vaccination.
That site you linked to is really poor quality stuff. The Weston A Price Foundation is not a credible source of information.
RE: WHY I DO NOT TRUST VACCINATIONS!