YES so sayeth live science.com , here's the article;
Does Sugar Make You Stupid?
by LiveScience Staff
Date: 15 May 2012 Time: 02:16 PM ET
A study on rats suggests that eating a high fructose diet for as little as six weeks may make you stupid. Luckily, a diet high in omega-3 fatty acids can counteract this IQ loss, researchers suggest.
"Our findings illustrate that what you eat affects how you think," study researcher Fernando Gomez-Pinilla, of the University of California, Los Angeles, said in a statement. "Eating a high-fructose diet over the long term alters your brain's ability to learn and remember information. But adding omega-3 fatty acids to your meals can help minimize the damage."
The study was published in the May 15 issue of the Journal of Physiology. The research was done on rats, but the researchers believe their brain chemistry is similar enough to humans to extend the findings.
