I'm also a former fan. The advice he's giving is getting more and more extreme. He'll "keep an open mind" about so many odd and weird non-scientific herbal treatments and then attack theories that do have research backing.
His treatment of Gary Taubes on his show was particularly ridiculous. And I just saw on Dr. Oz's website (trying to find the Gary Taubes episode), a big banner headline: The Man Who Thinks Everything Dr. Oz says is wrong."
http://www.doctoroz.com/videos/man-w...ays-wrong-pt-1
You can also find Gary Taube's side of the story online (I can't find it at the moment, but I'll see if I can).
I'd encourage you to read both sides and then do just a bit of digging as to who is more believable.
Just as an example Taube's claims that Dr. Oz was much more fair and positive on his radio show than on the television show. So I checked that out and listened to the clips from both shows.
To me, the difference was night and day. Dr. Oz is the one who came across as a hypocrite.
Also, the television show portrays Dr. Oz eating meals that supposedly Taubes would endorse. That's not exactly true.
Dr. Oz snacks on pork rinds rather than his normal walnuts (failing to mention that the walnuts would be fine according to Taubes).
Dr. Oz substitutes his normal salmon with salad and brown rice with some slab-o-meat monstrosity (Taubes says that meal too would be great, only without the rice).
Not only did Dr. Oz portray the diet Taube's would recommend incorrectly, he also edited out all of Taube's arguments that made any sense at all.
More importantly than this weird feud with Taube's are all of the supplements that Dr. Oz seems to endorse. The partnership with Weight Watchers also bothered me, because if he had to partner with a weight loss organization, why not an affordable, non-profit like TOPS. If he really was more interested in the health of the nation, he would have picked an organization that even the poorest viewers could afford. TOPS is actually an older organization than WW, partners with the Medical School of Wisconsin, and has been proven to have weight loss success rates as effective as Weight Watchers. Of course, being a non-profit, there could be no endorsement deals.
He has every right to make as much money as he wants to, but his biases and hypocracies have just gotten worse and worse each show. The advice is also getting more and more outrageous and controversial, and the contradictions are just ridiculous. Something that he heartily recommends in one show, becomes something he vilifies in another.