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Limiting Fructose May Boost Weight Loss, Researcher Reports

Limiting Fructose May Boost Weight Loss, Researcher Reports:

"One of the reasons people on low-carbohydrate diets may lose weight is that they reduce their intake of fructose, a type of sugar that can be made into body fat quickly, according to a researcher at UT Southwestern Medical Center.

[...]

"Our study shows for the first time the surprising speed with which humans make body fat from fructose," Dr. Parks said. Fructose, glucose and sucrose, which is a mixture of fructose and glucose, are all forms of sugar but are metabolized differently.

"All three can be made into triglycerides, a form of body fat; however, once you start the process of fat synthesis from fructose, it's hard to slow it down," she said.

In humans, triglycerides are predominantly formed in the liver, which acts like a traffic cop to coordinate the use of dietary sugars. It is the liver's job, when it encounters glucose, to decide whether the body needs to store the glucose as glycogen, burn it for energy or turn the glucose into triglycerides. When there's a lot of glucose to process, it is put aside to process later.

Fructose, on the other hand, enters this metabolic pathway downstream, bypassing the traffic cop and flooding the metabolic pathway.

"It's basically sneaking into the rock concert through the fence," Dr. Parks said. "It's a less-controlled movement of fructose through these pathways that causes it to contribute to greater triglyceride synthesis. The bottom line of this study is that fructose very quickly gets made into fat in the body."

Though fructose, a monosaccharide, or simple sugar, is naturally found in high levels in fruit, it is also added to many processed foods. Fructose is perhaps best known for its presence in the sweetener called high-fructose corn syrup or HFCS, which is typically 55 percent fructose and 45 percent glucose, similar to the mix that can be found in fruits. It has become the preferred sweetener for many food manufacturers because it is generally cheaper, sweeter and easier to blend into beverages than table sugar."

Keep in mind that regular sugar is 50% fructose also

Comments

Anonymous said…
There was a great article this week in USA Today about new research pertaining to high fructose corn syrup. Check it out here: http://www.usatoday.com/news/health/2008-12-08-fructose-corn-syrup_N.htm
-Liz on behalf of the Corn Refiners Association
Anonymous said…
In addition to the research referenced in the USA Today article above, you can get more HFCS facts at www.sweetsurprise.com

-Liz, on behalf of the Corn Refiners Association
Scott said…
Liz is absolutely right. High Fructose Corn Syrup causes diabetes, gout, heart disease, obesity, high blood pressure, insulin resistance, and a whole host of negative neurological effects, just like sugar does. Both are equally deadly and poisonous. The only difference is that high fructose corn syrup is way cheaper, and easier to work with, than sugar, so it is put into almost every story and restaurant purchased item you can think of. This overabundance of cheap sweeteners has brought unimagined and nightmarish consequences to hundreds of millions of unknowing people, who somehow think that fat in the diet is dangerous, thanks to government misinformation. But remember, high fructose corn syrup is no worse than regular sugar, just like whisky is no more dangerous than beer.

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