Study Links Fructose with Overeating, Obesity

Fructose has different effect on the brain than other sugar types

A new study has shown that the consumption of fructose, the type of sugar most often found in processed foods, may lead to overeating and obesity.

According to The Huffington Post, researchers have found that when a beverage containing glucose, a simpler form of sugar, is consumed, it triggers a "reward" sensor in the brain that suppresses our desire for food, leading us to feel more full. When fructose is consumed, however, that sensor is never triggered.

This means that when drinking a beverage with fructose in it, we don’t get that sense of reward and continue to eat and drink because our brain isn’t telling us to stop, which can obviously lead to overconsumption, and eventually obesity.

Even though both types of sugar contain the same amount of calories, the body processes them differently, according to the study, which examined 20 normal-weight individuals and was published in the Journal of the American Medical Association.

Most sweetened foods and beverages contain high-fructose corn syrup, which contains 55 percent fructose, as opposed to table sugar, which is half fructose, half glucose. The doctor behind the study, Robert Sherwin, advises to limit consumption of beverages that contain fructose and high-fructose corn syrup, and to cut back on sugar in general. 

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You missed the part of the study where they actually surveyed the people on satiety, fullness and hunger - here is the quote from the study (have removed the numbers to make it easier to read, emphasis mine) - "There was NO significant difference between glucose vs fructose ingestion on predrink-postdrink changes in hunger, fullness or satiety".

Considering that HFCS and sucrose actually contain (almost) equal amounts of glucose and fructose - it is a little hard to extrapolate this study, even if there was differences in the actual physical outcomes. Also consider the serving sizes used, 75g of glucose would require drinking 150g of sucrose or slightly less HFCS (we also don't know if there would be any effect in solid vs liquid food)

A little early to take anything from a study that really only showed changes in blood flow but NOT in actual measures of hunger, fullness and satiety! What is the point of inferring things from bloodflow, when they actually measured the outcomes and there was no significant difference between the groups?

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