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May 17

Very Sugary Diet Makes You Stupid

Editor's Choice Main Category: Nutrition / Diet Also Included In: Neurology / Neuroscience;Psychology / Psychiatry Article Date: 17 May 2012 - 8:00 PDT

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Earlier studies have shown that fructose is involved in causing diabetes, obesity and a fatty liver, but this is the first research to uncover how sugar can influence the brain. In the Americas, high fructose corn syrup is widely used, whereas in Europe and Asia sucrose is more prevalent; this study focused on fructose.

Fernando Gomez-Pinilla, a professor of neurosurgery at the David Geffen School of Medicine at UCLA and a professor of integrative biology and physiology in the UCLA College of Letters and Science said

It is estimated that the average American consumes around 47 pounds of sugar and another 35 pounds of high fructose corn syrup per year. In the late 1800s, this figure was about 2 pounds per year. The soaring rates of diabetes, obesity and even cancer have been linked to a sugary diet. A part of the problem is the prevalence of sugar and high fructose corn syrup that is laced into everything from apple sauce, yoghurt and fruit juices to bread, ketchup - even hamburgers and processed meat often have sugar added. Avoiding sugar is not as simple as not drinking sodas and eating candy bars.

Gomez-Pinilla, who is also a member of UCLA's Brain Research Institute and Brain Injury Research Center, goes onto explain:

To carry out the study, Gomez-Pinilla and his study co-author Rahul Agrawal, a UCLA visiting postdoctoral fellow from India, looked at two groups of rats. Both group was given drinking water laced with fructose solution, but the second group was also fed flaxseed oil and docosahexaenoic acid (DHA). These contain omega-3 fatty which are thought to protect against damage to the synapses, which are essentially the electrical connections between the brain cells.

As a control, the animals were fed on standard rat feed for five days before the fructose diet started. They were also trained on a maze twice per day and tested to see how well they performed. They also placed visual markers in the maze to help the rats remember their way around.

Excerpt from:
Very Sugary Diet Makes You Stupid

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