Among its most outspoken critics are David Gorski of ScienceBlogs, who has called it "one of the most wretched hives of scum and quackery on the Internet," and the most "blatant purveyor of the worst kind of quackery and paranoid anti-physician and anti-medicine conspiracy theories anywhere on the Internet", as well as Peter Bowditch of the website Ratbags, and Jeff McMahon writing for Forbes. Steven Novella has called NaturalNews "a crank alt med site that promotes every sort of medical nonsense imaginable. If it is unscientific, antiscientific, conspiracy-mongering, or downright silly, Mike Adams appears to be all for it ? whatever sells the "natural" products he hawks on his site.".
Other critics of Adams' website include astronomer and blogger Phil Plait, PZ Myers, Mark Hoofnagle and Brian Dunning, who listed it as #1 on his "Top 10 Worst Anti-Science Websites" list. Adams is listed as a "promoter of questionable methods" by Quackwatch and Robert T. Carroll at The Skeptic's Dictionary has said, "Natural News is not a very good source for information. If you don't trust me on this, go to Respectful Insolence or any of the other bloggers on ScienceBlogs and do a search for "Natural News" or "Mike Adams" (who is NaturalNews). Hundreds of entries will be found and not one of them will have a good word to say about Mike Adams as a source."
this explains a lot.