- The Washington Times - Thursday, December 19, 2002

Issue settled. The Atkins Diet the famous high-fat, low-carb regime that lets dieters load up on pork rinds and scrapple till grease oozes from every pore works. The American medical establishment has been wrong all along. Not only is gorging on fat the key to becoming thin, it's heart-healthy to boot. So say the headlines:
"High Fat, Low Carb Diet May Finally Be Getting Its Due" (CNN).
"Fats Win Latest Round in Diet War" (the Chicago Tribune).
"Low-carb Atkins Diet Beats Low-Fat American Heart Association Plan in Head-to-Head Comparison" (CNBC).
"High-Fat Diet Show Promise in Study" (AP).
"Doctors Eat Crow on Banning Celebrity Diet" (the Australian).
The public responded predictably to the pro-Atkins results of an Atkins-funded study last month. Sales of Dr. Robert Atkins' New Diet Revolution skyrocketed over 900 percent on Amazon.com the day the news broke, with more than 10 million people in total having bought it.
And they've all been sold one greasy fat bill of goods.
There are two issues here. One is the effect of the Atkins diet on weight loss. The other is its effect on cholesterol and triglycerides, a group of fatty compounds that circulate in the bloodstream and are stored in the fat tissue.
In the study in question, Dr. Eric Westman of the Duke University Medical Center looked at both. He followed two groups of 60 dieters each, one on a high carbohydrate diet and one on the high-fat, low-carbohydrate Atkins diet. He reported that the Atkins group lost twice as much weight during the six-month study period as did the high-carb group. But this is both unsurprising and meaningless.
Gary Foster of the University of Pennsylvania co-authored a study conducted in virtually the same manner as Dr. Westman's, while Randy Seeley of the University of Cincinnati co-authored yet another. Both provide the same explanation for the weight loss. The regimen "gives people a framework to eat fewer calories, since most of the choices in this culture are carbohydrate driven," Mr. Foster told me. "Over time, people eat fewer calories."
In any event, the main issue with any diet be it Atkins, popcorn or jelly bean isn't whether people can lose weight in the short-term but rather whether they can stick to the regimen and keep the pounds off not for just half a year but essentially forever.
Yet completely lost in the media mania was that among the 60 Atkins dieters in the Westman group analyzed for weight loss, there was a stunning 60 percent dropout rate among the 60 Atkins dieters. By comparison, 45 percent of the high-carb eaters dropped out.
Moreover, it's generally accepted that drop-out rates anywhere near this level completely invalidate a study because you don't know how all those drop-outs would have affected the result. Maybe those Atkins dieters were quitting not only because of carbohydrate cravings but also because they weren't losing weight or losing it fast enough to satisfy them.
Why would Dr. Westman's interpretation be so different from those of Mr. Foster and Mr. Seeley? It may help to know not only that this particular study was paid for by the Atkins Center, but that it's part of a long-term funding arrangement.
Analyses such as one published in the New England Journal of Medicine (NEJM) in May 2000 have shown that funding sources do in fact influence study results and the interpretations (or "spin," if you will) of those results. "When the boundaries between industry and academic medicine become as blurred as they are now, the business goals of industry influence the mission of medical schools in multiple ways," declared an accompanying NEJM editorial.
Dr. Westman's interpretation, based on his handful of subjects observed over a mere six months, also directly contradicts three decades of studies published in peer-reviewed journals. A review of more than 200 of these published last year in a major medical journal concluded bluntly: "The BMIs [a surrogate measure of weight] were significantly lower for men and women on the high carbohydrate diet; the highest BMIs were noted for those on a low carbohydrate diet."
But what about the blood findings? Wasn't it a real shocker that Atkins dieters consuming heavy amounts of fat saw their HDL ("good cholesterol") levels increase by 11 percent while harmful triglycerides fell 49 percent? (LDL, or "bad cholesterol," levels remained the same.)
No.
"Often just losing weight alone will cause improvement in triglyceride and cholesterol levels," the president of the American Heart Association, Dr. Robert Bonow, told me. Since the Atkins dieters did lose more weight than those on the high-carb diet, it only stands to reason that by comparison their blood levels would also improve more.
Says Mr. Seeley, Dr. Westman's "weight loss data look just like ours, and my argument is that the weight loss accounts for the beneficial effects."
Ultimately this fat-fest over a single study shows nothing more than the media's amazing ability to pick out and flaunt a will o' the wisp.
Why? Our increasingly obese population is desperate for some magical formula to avoid the physiological law that body fat is determined by calories in and calories out. The media tried to fill the need, but ultimately failed the public. "It just makes people confused and frustrated," an exasperated Mr. Seeley said. Yes, and fatter by the day.

Michael Fumento is a senior fellow at the Hudson Institute.

LOAD COMMENTS ()

 

Click to Read More

Click to Hide