The following is a list of websites to avoid because of promoting misleading, false and just plain bad science information.. It is by no means exhaustive, but it does include a lot.
From Skeptoid :
A truly large list (too big to list everything here), check out this link nutritionasiknowit
Collective Evolution (facebook group)
David Avocado Wolfe
Fed Up (film)
Food Matters (film)
GMO OMG (film)
Gwenyth Paltrow (Goop.com)
NaturalCuresNotMedicine (facebook group)
A good infographic to help gauge the reliability of some news sources (click on it to see a larger version):
There are plenty more lists out there of sources to avoid as there is no end to nonsense peddlers.