Michelle Minton on flawed government nutrition guidance and the science behind it:
Congress, of course, is an inherently political entity. And so when it — or any other government-appointed body — privileges one theory over another, it creates bias that trickles down to the research community. The problem is not simply that the government makes decisions on the basis of imperfect information, but that government intervention, itself, can distort the development of research.
For example, the theory that dietary fat plays a large role in cardiovascular disease was controversial in the scientific community, even as the government began relying on it to develop the first federal nutritional guidelines. In fact, a lot of the existing research contradicted it. Nevertheless, the theory flourished. Why? In part, no doubt, because researchers — many of whom rely on government grants — faced risks associated with bucking the new zeitgeist created by the government.