Celebrities rarely shy away from public peddling of dubious ideas about health and science, and 2012 was no exception.
In its annual list of the year's worst abuses against science, the Sense About Science (SAS)campaign also named former U.S. presidential candidate Mitt Romney for spreading misinformation about windows on planes, and Olympic swimmer Michael Phelps for false justifications for peeing in the pool.
To help set the record straight, SAS, a charity dedicated to helping people make sense of science and evidence, invited qualified scientists to respond to some of the wilder pseudo-scientific claims put about by the rich and famous.
It suggested Romney, who wondered aloud in September why aircraft crews don't just open the windows when there's a fire on board, should listen to aeronautical engineer Jakob Whitfield:
"Unfortunately, Mitt, opening a window at height wouldn't do much good," the scientist said. "In fact, if you could open a window whilst in flight, the air would rush out...because air moves from the high pressure cabin to the lower pressure outside, probably causing further injury and damage."
January Jones's dried placenta pills, which the actress admitted in March she consumed after giving birth, win no favor with Catherine Collins, principal dietician at St George's Hospital in London.
"Nutritionally, there's nothing to be gained from eating your placenta - raw, cooked, or dried," Collins said. "Apart from iron, which can be easily found in other dietary choices or supplements, your placenta will provide toxins and other unsavory substances it had successfully prevented from reaching your baby in utero."