The Dietary Delusion
Over the past few weeks, I have awakened to hear snippets of stories such as this one on NPR about “the obesity epidemic.” The stories are all part of a series reporting on a recent poll undertaken by NPR, the Robert Wood Johnson Foundation and the Harvard School of Public Health. The poll looked at the attitudes and the self-reported actions of parents towards the ways their children ate and about their children’s activity levels.
Among the key findings of the survey highlighted in the NPR reports have been these two points:
- “Recent public opinion polls show that most American adults think obesity is a serious problem for society, but most parents in the poll here are not concerned their own children will become overweight as adults.”
- “In most cases, parents don’t seem to believe that the way their child ate on a given day is likely to make them gain unhealthy weight.”
The NPR story linked above blames a psychological factor known as “optimism bias,” and says that parents may think they are doing the right things, but really they are just poorly informed and/or deluding themselves.
Since this is an ongoing series on NPR, one can expect it to culminate with an interview with Michelle Obama or someone behind her “Let’s Move” campaign, or with a series of suggestions for more government action, or calls for more spending on government nutrition programs, or possibly with all of the above.
What hasn’t occurred to the geniuses at NPR, though, is that perhaps the parents really have been listening to the advice coming from the government and the media for the past twenty five years and they really do think they are doing the right things, but the advice is flawed.
Ronald Reagan famously remarked that “the trouble with our liberal friends is not that they are ignorant; it’s just that they know so much that isn’t so.” In recent years, Gary Taubes has become the best-known of those who have challenged the nutritional and dietary orthodoxy which has been promoting a high-carbohydrate, low-fat diet. Writing in Newsweek last spring, he explained that: ”The problem is, the solutions this multi-level campaign promotes are the same ones that have been used to fight obesity for a century—and they just haven’t worked.”



