Tag: nutrition

  • Daily Read: Chocolate-Dipped “Science”

    Daily Read: Chocolate-Dipped “Science”

    Are you confused by science reporting about health and nutrition? Have you given up listening to what the media reports about our diets and what foods are good (or bad) for us? If you answered yes, I’m not surprised, and I fear that reading this article will give you even less confidence in media reporting on these important topics. But I still think you should read it. John Bohannon explains the hoax he perpetrated with the help of some German researchers in a bid to illustrate how easy it is to dupe the media into publishing bad science. In brief, Bohannon did an actual scientific study that generated real results showing that eating a bar of dark chocolate every day accelerates weight loss – but his methodology was full of holes and his conclusions were weakly supported. Nevertheless, when he got his study published in a pay-to-play “science” journal  that will take any study as long as the author pays the fee (an enormous problem itself and the topic of a future rant), and then released an accurate – but detail-scant – press release trumpeting his results, it was snapped up immediately and uncritically by media outlets throughout the globe and published with no scientific fact-checking.

    The upshot? We need more critical thinking not just in our media but in media consumers. People need to be taught how to critically evaluate how a study was conducted and ask the right questions: what was the sample size? What statistical tests were used to calculate the results? How many parameters did the study measure? I realize that learning how to do this takes education and experience, but we need it. It’s not enough to rely on media outlets to do it for us when their bottom line is driven by clicks, shares, and page-views. And this article also illustrates why it is so unbearably easy for the unscrupulous purveyors of modern snake-oil to fool their customers with sophisticated nonsense. It’s a large part of the reason the anti-vaccine movement has any traction at all, why the Food Babe has any followers, and why homeopathic remedies have yet to be banned from store shelves. We have to learn for ourselves how to spot bad science.

    I Fooled Millions Into Thinking Chocolate Helps Weight Loss. Here’s How.

  • Daily Reads: Food Logic

    Daily Reads: Food Logic

    Lack of critical thinking about food has long been one of my biggest peeves. I rant to my students every semester about why they shouldn’t worry about gluten unless they have celiac disease; that the paleo diet is based on pseudoscientific reasoning about human evolution; and why their blood type has nothing to do with what kind of food they should eat. So I truly appreciate today’s Daily Read from Alan Levinovitz. Writing for Slate, Levinovitz compares diet fads to religions and laments the fact that no amount of facts and logic will dissuade people from their uncritical faith in charlatans like Dr. Oz and the Food Babe. He deconstructs how these folks make abundant use of sophisticated nonsense to manipulate people and scare them into compliance with their absurd dictates about “unnatural” foods and insidious “chemicals” and “toxins.” Levinovitz sounds pretty discouraged about the possibility of changing people’s minds; yet he ends by making a compelling argument for improving people’s critical thinking skills by educating them about such persuasive techniques and logical fallacies. Perhaps there is hope yet.

    The Logical Failures of Food Fads

  • Daily Reads: The Real Cause of Obesity

    Daily Reads: The Real Cause of Obesity

    I do a lot of reading about health and nutrition because I find it to be interesting both anthropologically and personally. I have long come to embrace the conclusion that diet-related health issues such as obesity are linked to social and cultural causes and not (just) to personal decision-making. Thus, today’s Daily Read is about that very topic. James Hamblin of The Atlantic writes about a meeting he attended with policy makers, researchers, and medical professionals where the link between culture and the obesity crisis was the topic. What I found most interesting about the article was a study showing how attitudes towards obesity split along political lines – that is, liberals are more likely to see obesity as a societal problem that requires government intervention than conservatives are. But even more fascinating, to me, is the fact that most people still don’t seem to link social causes with obesity and instead are much more likely to pin it on personal choice, which as Hamblin points out, is an extremely reductionist approach to a complex problem.

    Body Weight, Clash of Ideologies