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Agricultural News

Study Questions Unique Link Between High Fructose Corn Syrup and Type 2 Diabetes

Mon, 03 Dec 2012 15:31:01 CST

Study Questions Unique Link Between High Fructose Corn Syrup and Type 2 Diabetes
A study released last week by researchers from the University of Southern California and Oxford University claiming to find a unique link between high fructose corn syrup and Type 2 diabetes is flawed both in its design and conclusions, according to the Corn Refiners Association.

Authored by Dr. Michael I. Goran, the report has met with severe criticism for failing to account for the widespread agreement among scientists and medical doctors that HFCS and sucrose (table sugar) are nutritionally equivalent.

"This latest article by Dr. Goran is severely flawed, misleading and risks setting off unfounded alarm about a safe and proven food and beverage ingredient," said CRA President Audrae Erickson. "There is broad scientific consensus that table sugar and high fructose corn syrup are nutritionally and metabolically equivalent. It is, therefore, highly dubious of Dr. Goran--without any human studies demonstrating a meaningful nutritional difference between high fructose corn syrup and sugar--to point an accusatory finger at one and not the other. Dr. Goran commits the most fundamental of research errors: Just because an ingredient is available in a nation's diet does not mean it is uniquely the cause of a disease."

In her statement, Erickson explained one of the study's flaws in that it fails to account for factors which have commonly been held as direct factors in the development of Type 2 diabetes.

"If this study shows anything, it is that there is an association between body mass index and diabetes prevalence," she said. "Take for example, Japan, where the average BMI is 22.59, and Mexico, where the average BMI is 27.59. Even though Japan consumes more HFCS every year than Mexico, the prevalence rates of diabetes in Japan are about half of Mexico. This example alone shows that Dr. Goran's hypothesis is totally flawed."

Erickson also noted that Goran, whose repeated claims against HFCS have often been refuted, relies upon the work of scientists which has already been widely discredited.

"This is not the first time HFCS detractors have tried to use statistical analysis to 'suggest' a unique causal link between HFCS and obesity," she explained. "The co-authors of the infamous 2004 Bray and Popkin paper, which Dr. Goran relies on, now admit they reached an erroneous hypothesis. As one author of the 2004 paper confirmed, 'All sugar you eat is the same, that's what we know now that we didn't know in 2004.'"

Noting that rigorous, credible scientific inquiry into the health effects of sweeteners is essential to advancing our understanding of a healthy diet, Erickson summarized the study as the latest in a quest to condemn high fructose corn syrup that crosses the line from science to advocacy.

"The bottom line is this is a poorly conducted analysis, based on a well-known statistical fallacy, by a known detractor of HFCS whose previous attack on the ingredient was deeply flawed and roundly criticized," she concluded. "The common sense message for consumers to understand is to watch their intake of all extra calories, including all added sugars."

In addition to Erickson's statement, CRA also released a statement from University of Central Florida Professor of BioMedical Sciences James M. Rippe, M.D., who consults for CRA.

"Diabetes is a complex disease with many underlying factors," said Dr. Rippe. "It is highly unlikely that one component of the diet is uniquely related to diabetes. There are well-established links between obesity and diabetes. That is where we should be focusing our attention rather than vilifying one component of the diet."

Supporting his conclusion, Rippe released a list of the five major reasons that the Goran study is flawed and unreliable. This document is available in its entirety by clicking here.



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