Sunday, August 29, 2010

What is High Fructose Corn Syrup?

High-fructose corn syrup (HFCS) is a manmade sweetener that’s found in a wide range of processed foods, from ketchup and cereals to crackers and salad dressings. It also sweetens just about all of the (regular) soda Americans drink. HFCS used in foods is between 50 to 55 percent fructose—so chemically, it’s virtually identical to table sugar (sucrose), which is 50 percent fructose. Metabolic studies suggest our bodies break down and use HFCS and sucrose the same way.

Yet, after HFCS began to be widely introduced into the food supply 30-odd years ago, obesity rates skyrocketed. And because the sweetener is so ubiquitous, many blame HFCS for playing a major role in our national obesity epidemic. As a result, some shoppers equate HFCS with “toxic waste” when they see it on a food label. But when it comes right down to it, a sugar is a sugar is a sugar. A can of soda contains around nine teaspoons of sugar in the form of HFCS—but, from a biochemical standpoint, drinking that soda is no worse for you than sipping home-brewed iced tea that you’ve doctored with nine teaspoons of table sugar or an equivalent amount of honey.

Even Barry Popkin, Ph.D., a nutrition professor at the University of North Carolina at Chapel Hill who previously suggested, in an influential 2004 paper, a possible HFCS-obesity link, stresses that the real obesity problem doesn’t lie just with HFCS. Rather, it’s the fact that sugars from all sources have become so prevalent in our food supply, especially in our beverages. He scoffs at the “natural” sweeteners sometimes added to upscale processed foods like organic crackers and salad dressings. “They all have the same caloric effects as sugar,” he explains. “I don’t care whether something contains concentrated fruit juice, brown sugar, honey or HFCS. The only better sweetener option is ‘none of the above.’”

At EatingWell, it’s our philosophy to keep any sweeteners we use in our recipes to a minimum—and likewise, to limit processed foods with added sugars of any type, including HFCS. We recommend you do the same.

Did you know?
The corn syrup found on supermarket shelves is only a distant cousin to the high-fructose corn syrup used commercially. Both start by processing corn starch with enzymes and/or acids, but the HFCS process is much more complex and results in a different chemical structure. By Joyce Hendley, September/October 2007

1 comment:

  1. Hi Rob,
    My google alert for HFCS picked up your post.
    Sugar is no saint, but HFCS is far worse.
    Yes, they are both composed of fructose and
    glucose, and yes, once in the body the fructose
    and glucose units are indistinguisable from
    other sources--sugar cane or honey; however,
    the ratio of fructose: glucose is different.
    HFCS-55, used to sweeten all national brands of soda and many other beverages is 55% fructose: 45% glucose. This may appear to be
    "close" to the 50:50 ratio found in sucrose,
    until you sit down and do the math.
    55%:45% = 55/45 = 1.22. This means that in
    every Amercian Coke there is, compared to
    glucose, 22% more fructose. What does this mean in everyday terms?
    5 HFCS-55 Cokes =
    4.25 Sucrose Coke + 0.75 "fructose Coke" (if it existed). We are swimming in extra fructose, and have been since 1984 when Big Soda, Coke and Pepsi, make the switch to HFCS-55.
    You don't have to delve deeply into the research to read that cumulative extra fructose
    creates metabolic dangers: leptin resistance,
    insulin resistance, elevated triglycerides which eventually lead to obesity, diabetes,
    and cardiovascular disease.
    For whatever reason the CRA selected
    HFCS-55-- greater sweetness with fewer calories, greater sweeteness so end manufacturers could use less, greater sweetness for addictiveness (pure conjecture),--the corn chemists overlooked that fact that
    they were creating a sweetener with a
    fructose>>glucose imbalance.
    Ditch all HFCS, especially HFCS-55
    Take care,
    Cynthia Papierniak, M.S.

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