The British Medical Journal is taking Dr. Oz to task over the information he provides on his show. According to an article in the Washington Post, the reserachers examined 40 episodes and found 479 separate medical recommendations. Of those recommendations, they were able to find medical research that supported 46% of his recommendations. 15% of his recommendations were actually contradicted by current medical research and 39% has no medical research available.
Most clinicians in the US have probably had a patient that came with concerns about something they heard from Dr. Oz. A little more evidence that you can't believe everything you read on the internet OR hear from Dr. Oz!