Obesity & HFCS Myths

Arthur Frank, M.D., Medical Director of the George Washington University Weight Management Program talks about global obesity and HFCS.

Experts and Obesity

Experts reviewed the research and concluded that there is not enough evidence to implicate high fructose corn syrup as a unique cause of obesity.

Science and Research

Research published in the American Journal of Clinical Nutrition points to similarities between high fructose corn syrup and sugar.

HFCS in Moderation

Americans would need to eat 87 bowls of bran cereal in a single day to reach the Institute of Medicine’s recommended daily allowance of added sugars from high fructose corn syrup.

HFCS & Obesity

Printer-friendly versionEmail a FriendPDF version

Why are there so many studies that implicate
high fructose corn syrup as a major culprit in
the obesity epidemic?

Many confuse pure "fructose" with "high fructose corn syrup," a sweetener that never contains fructose alone, but always in combination with an essentially equivalent amount of a second sugar (glucose). Recent studies that have examined pure fructose - often at abnormally high levels - have been inappropriately applied to high fructose corn syrup and have caused significant consumer confusion.

The abnormally high levels of fructose used in these studies are not found in the human diet. Fructose consumption at normal dietary levels and as part of a balanced diet has not been shown to yield such results. Moreover, the presence in high fructose corn syrup of glucose in combination with fructose is a critical distinguishing factor from pure fructose.

Following are some facts about high fructose corn syrup and fructose:

  • High fructose corn syrup contains approximately equal ratios of fructose and glucose. Table sugar also contains equal ratios of fructose and glucose. High fructose corn syrup and sugar are equally sweet and both contain four calories per gram
  • Fructose is a natural, simple sugar commonly found in fruits and honey. The absence of glucose makes pure fructose fundamentally different from high fructose corn syrup. This is because glucose has been shown to have a tempering effect on specific metabolic effects of fructose
  • There is no difference in how the body metabolizes table sugar and high fructose corn syrup. Once the combination of glucose and fructose found in high fructose corn syrup and sucrose are absorbed into the blood stream, the two types of sweetener appear to be metabolized similarly using well-characterized metabolic pathways
  • High fructose corn syrup meets the U.S. Food and Drug Administration's requirements for use of the term "natural." It is made from corn, a natural grain product and contains no artificial or synthetic ingredients or color additives.
  • The American Medical Association in June 2008 helped put to rest a common misunderstanding about high fructose corn syrup and obesity, stating that "high fructose syrup does not appear to contribute to obesity more than other caloric sweeteners."