Sugar is as toxic as tobacco and liquor, needs government regulation according to researchers
Posted: 02/06/2012
Last Updated: 16 hours and 20 minutes ago
By ERIN ALLDAY, San Francisco Chronicle
SAN FRANCISCO - Like alcohol and tobacco, sugar is a toxic, addictive substance that should be highly regulated with taxes, laws on where and to whom it can be advertised, and even age-restricted sales, a team of scientists contends.
In a paper published in Nature on Wednesday, the University of California, San Francisco researchers argue that increased global consumption of sugar is primarily responsible for a whole range of chronic diseases that are reaching epidemic levels around the world.
Sugar is so heavily entrenched in the food culture in the United States and other countries that getting people to kick the habit will require much more than simple education and awareness campaigns, the scientists said.
It's going to require public policy that gently guides people toward healthier choices and uses brute force to remove sugar from many processed foods, said Dr. Robert Lustig, a pediatric endocrinologist at UCSF.
"The only method for dealing with this is a public-health intervention," Lustig said in an interview. "Everyone talks about personal responsibility, and that won't work here, as it won't for any addictive substance. These are things that have to be done at a governmental level."
In response to the study, the food and beverage industries said in statements that sugar cannot be blamed for high rates of chronic disease in the U.S. and elsewhere.
Comparing sugar to alcohol and tobacco is "simply without scientific merit," the American Beverage Association said. "There is no evidence that focusing solely on reducing sugar intake would have any meaningful public health impact."
Lustig has written extensively about the role he believes sugar has played in driving up rates of chronic illness such as heart disease and diabetes. Excessive sugar, he argues, alters people's biochemistry, making them more vulnerable to metabolic conditions that lead to illness, while at the same time increasing people's craving for sweets.
It's sugar, not obesity, that is the real health threat, Lustig and his co-authors -- public health experts Laura Schmidt and Claire Brindis -- say in their paper.
They note that studies show 20 percent of obese people have normal metabolism and no ill health effects resulting from their weight, while 40 percent of normal-weight people have metabolic problems that can lead to diabetes and heart disease. They contend sugar consumption is the cause.
In other words, not everyone gains a lot of weight from over-indulging in sugar, but a large proportion of the U.S. population is eating enough to have devastating health effects, they say.
Americans eat and drink roughly 22 teaspoons of sugar every day -- triple what they consumed three decades ago -- and most people aren't even aware of the various ways sugars sneak into their diets, often via breads, cereals and processed foods. Terms that identify sugars on labels include sucrose, glucose, fructose, maltose, hydrolysed starch and invert sugar, corn syrup and honey.
Getting those sugars out of the American food culture is going to require a massive shift in how foods and beverages are made in the United States, the authors say. In the paper, they say that the Food and Drug Administration needs to remove sugar from the list of foods "generally regarded as safe," meaning they can be used in unlimited quantities.
The food and beverage industries have repeatedly denied that sugar is the main villain behind rising obesity rates or the increases in diabetes and heart disease. Instead, industry representatives blame a complex cultural shift toward a more inactive lifestyle and increased calories overall.
Not all scientists agree that sugar should shoulder the entire burden for the chronic diseases afflicting modern Americans.
"When you get into this argument about sugar in the diet, you also have to look at the type of food that has a high sugar content," said Jo Ann Hattner, a San Francisco registered dietitian who teaches nutrition courses at Stanford University. "Those foods have few nutrients and little fiber, and that's not good for you. So is it sugar itself that's harmful?"
That said, Hattner added, there's no doubt that people in general consume too much sugar and that everyone could benefit from eating less -- and especially looking out for "hidden" sugars in their diets.
(Contact Erin Allday at eallday(at)sfchronicle.com.)
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