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Does Sugar Kill? How the Sugar Industry Hid the Toxic Truth

For decades, the industry kept scientists from asking: Does sugar kill?

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In the few instances when governmental authorities have sought to reduce people's sugar consumption, the industry has attacked openly. In 2003, after an expert panel convened by the World Health Organization recommended that no more than 10 percent of all calories in people's diets should come from added sugars—nearly 40 percent less than the  USDA's estimate for the average American—current Sugar Association president  Andrew Briscoe wrote the WHO's director general warning that the association would "exercise every avenue available to expose the dubious nature" of the report and urge "congressional appropriators to challenge future funding" for the WHO. Larry Craig (R-Idaho, sugar beets) and John Breaux (D-La., sugarcane), then co-chairs of the Senate Sweetener Caucus,  wrote a letter to Secretary of Health and Human Services Tommy Thompson, urging his "prompt and favorable attention" to prevent the report from becoming official WHO policy. (Craig had received  more than $36,000 in sugar industry contributions in the previous election cycle.) Thompson's people responded with a  28-page letter detailing "where the US Government's policy recommendations and interpretation of the science differ" with the WHO report. Not surprisingly, the organization left its experts' recommendation on sugar intake out of its official dietary strategy.

In recent years the scientific tide has begun to turn against sugar. Despite the industry's best efforts, researchers and public health authorities have come to accept that the primary risk factor for both heart disease and type 2 diabetes is a condition called metabolic syndrome, which now affects more than  75 million Americans, according to the Centers for Disease Control and Prevention.  Metabolic syndrome is characterized by a cluster of abnormalities—some of which Yudkin and others associated with sugar almost 50 years ago—including weight gain, increased insulin levels, and elevated triglycerides. It also has been linked to cancer and Alzheimer's disease. "Scientists have now established causation," Lustig said recently. "Sugar causes metabolic syndrome."

 

Newer studies from the University of California-Davis have even reported that LDL cholesterol, the classic risk factor for heart disease, can be raised significantly in just two weeksby drinking sugary beverages at a rate well within the upper range of what Americans consume—four 12-ounce glasses a day of beverages like soda, Snapple, or Red Bull. The result is a new wave of researchers coming out publicly against Big Sugar.

During the battle over the 2005 USDA guidelines, an  internal Sugar Association newsletter described its strategy toward anyone who had the temerity to link sugar consumption with chronic disease and premature death: "Any disparagement of sugar," it read, "will be met with forceful, strategic public comments and the supporting science." But since the latest science is anything but supportive of the industry, what happens next?

"At present," Lustig ventures, "they have absolutely no reason to alter any of their practices. The science is in—the medical and economic problems with excessive sugar consumption are clear. But the industry is going to fight tooth and nail to prevent that science from translating into public policy."

Like the tobacco industry before it, the sugar industry may be facing the inexorable exposure of its product as a killer—science will ultimately settle the matter one way or the other—but as Big Tobacco learned a long time ago, even the inexorable can be held up for a very long time.

 

Gary Taubes, author of the 2011 best-seller  Why We Get Fat, has written for Discover, Science, and the New York Times Magazine. He is currently writing a book about sugar.

Cristin Kearns Couzens took a two-year break from her career in dental health administration to pursue independent research on the sugar industry.

 
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