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No joy in this cooking -- recipes can make you fat

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[February 17, 2009]  CONCORD, N.H. (AP) -- Eating at home can save you some cash, but beware the calorie cost.

Though restaurants often take the blame for portion distortion -- the trend of serving up ever larger helpings -- cookbook recipes have done some Supersizing of their own, a study published this week in the Annals of Internal Medicine found.

Restaurant"There's so much attention that's been given to away-from-home eating and so much attention that's been focused on restaurants and the packaged food industry, it makes me wonder whether it's actually deflecting attention from the one place where we can make the most immediate change," says Cornell University marketing professor Brian Wansink, who directed the study.

The study, which looked at how classic recipes have changed during the past 70 years, found a nearly 40 percent increase in calories per serving for nearly every recipe reviewed, about an extra 77 calories.

The study identified the trend in numerous cookbooks, but it focused on American kitchen icon "Joy of Cooking," first published during the '30s and regularly updated with new editions since then, most recently in 2006.

Those editions gave researchers a continuity of recipes from which to draw their data, Wansink says.

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Of the 18 recipes published in all seven editions, 17 increased in calories per serving. That can be attributed partly to a jump in total calories per recipe (about 567 calories), but also to larger portion sizes.

Only the chili con carne recipe remained unchanged through the years. The chicken gumbo, however, went from making 14 servings at 228 calories each in the 1936 edition, to making 10 servings at 576 calories each in the 2006 version.

Calls to Scribner, publisher of "Joy of Cooking," were not immediately returned.

Most excess calories in the American diet still come from food eaten outside the home, says Marion Nestle, professor of nutrition and food studies at New York University. But she says the study is yet another illustration of how accustomed people are to eating ever-increasing quantities of food.

And changes in "Joy of Cooking" have been going on for a while. Increases in overall calories per recipe have been gradual, but portion sizes tended to jump, first during the '40s, again during the '60s, and with the largest jump in the 2006 edition.

The first significant signs of restaurant portion inflation didn't show up until the late '70s, says Wansink.

Lisa Young, an adjunct nutrition professor at New York University, had similar findings in a 2002 study that compared the book's brownie recipe from the '60s and '70s editions to the recipe from the 1997 edition.

"Same recipe. Same pan. But in the '60s and '70s it yielded 30 brownies," she says. "In the 1997 edition it yielded 15."

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She also was able to trace the trend to other recipe sources. For example, a popular chocolate chip cookie recipe that decades before produced 100 cookies, made only 60 during the '80s, though no ingredients had changed.

Wansink says he is more concerned by the increase in overall calories per recipe -- what experts call caloric density -- than in the portion size increases, which is a more easily recognized phenomenon.

"That (calorie increases) is more insidious because that's the sort if thing the average person wouldn't notice, wouldn't even think would have happened over the years," says Wansink, author of "Mindless Eating," an examination of why people overeat.

Much of the change can be attributed to money. Relative to household income, food is cheaper than during the '30s. So recipes once padded with less expensive (and lower-calorie) ingredients like beans, now often have more meat, Wansink says.

The scope of Wansink's study is limited. It measures the recipes only as written, not as eaten. Because people may eat more or less than the suggested serving, estimating the effect on the typical diet is challenging.

But a 40 percent increase is significant. A change of even 10 percent can affect weight, especially when dealing with high-calorie foods, says Wansink. His solution? Don't let a full portion get anywhere near your plate.

"It's not enough to just be aware," Wansink says of the recipes once intended to serve nearly twice as many people are they do today. "Put half of it away as soon as it's cooked."

___

On the Net:

Annals of Internal Medicine: http://www.annals.org/

[Associated Press; By J.M. HIRSCH]

Copyright 2009 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.

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