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Dr. Oz's dubious advice, in one chart

pie charts

The medical authority of Dr. Oz and The Doctors, via

Whenever you're wondering whether you can believe the medical advice you see on TV, just refer to these neat pie charts.

They're based on a study published in the British Medical Journal last December: researchers looked at the health claims mentioned in 40 randomly selected episodes of the two most popular internationally syndicated health talk shows, The Dr. Oz Show and The Doctors.

They identified 479 recommendations from The Dr. Oz Show and 445 recommendations from The Doctors, finding that on average, each episode contained about a dozen bits of health wisdom.

Researchers' conclusion: about half of the health recommendations either had no evidence behind them or actually contradicted what the best-available science tells us. That means about half of what these TV doctors say to their millions of satellite patients is woo, and potentially harmful and wasteful woo at that.

Vox video on Dr. Oz's three miracle weight-loss wonders.

Read more: Scientists tallied up all the advice on Dr. Oz's show. Half of it was baseless or wrong, Why Dr. Oz can say anything and keep his medical license, Dr. Oz's three biggest weight loss lies, debunked, and Meet the medical student who wants to bring down Dr. Oz.