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| Date: | Wed, 1 Jul 2015 10:38:25 +0200 |
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Comments anyone? Michael
In the 1980s a number of reports came out that led to several very powerful conclusions and prescriptions that became dogma for many people who wanted to do the right thing in connecting food choices with healthy living. These included cautions against too much fat in the diet (<30% of calories) and too much saturated fat (<10%). Over the years this catapulted into a gigantic movement towards low fat and (better yet) nonfat products. Red meat and whole milk were characterized as dangerous and don't even talk about ice cream or butter.
The science behind those studies was always a little weak - typically it was based on epidemiological studies that correlated dietary choices with health outcomes (people who eat a lot of red meat seem to have a higher incidence of heart disease), but they did not establish the biology that would explain how consumption of saturated fat or cholesterol would actually cause plaque to build up in arteries. Protests to this effect by folks in the dairy and beef industries (to name a couple of the more obvious ones) were met with skepticism about bias.
Recent research has called the some of the earlier dietary prescriptions into serious question. This is in evidence in the recent scientific review that USDA relies on to make its dietary rules for children nutrition programs, like School Lunch.
http://www.health.gov/dietaryguidelines/2015-scientific-report/06-chapter-1/d1-2.asp
This report still cautions against more that 10% of calories from saturated fat but it has removed dietary cholesterol (e.g. eggs) as a source for concern altogether and highlights underconsumption of calcium as a need to drink more low fat milk.
Less technical reporting is showing up in popular press reports, such as:
http://abcnews.go.com/Health/simple-rules-weight-loss/story?id=31243000
Andrew Novakovic
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Andrew M. Novaković
The E.V. Baker Professor of Agricultural Economics
Director of Outreach
Charles H. Dyson School of Applied Economics and Management
Cornell University
451A Warren Hall
Ithaca, New York 14853-7801
(Unless you are a fellow Serb, you probably aren't sure how to pronounce my
name. The phonetic pronunciation is something like this: No-VAK-oh-vich)
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An opinion should be the result of thought, not a substitute for it. - Jef Mallett
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