Below is an article I received that I found really informative. And it confirms much that we have believed for the past several years.
Now, let’s talk about why sugar makes you stupid:
You’ve
probably heard the adage, “you are what you eat.” According to
scientists at UCLA, what you eat may also affect how you use your
noodle. In fact, too much of the sweet stuff – specifically, fructose –
seems to impair learning and memory. The
good news is that you can exercise damage control by avoiding
high-fructose corn syrup (surprise!) and increasing your intake of
omega-3 fatty acids. Contrary
to the “Changing the Conversation about High Fructose Corn Syrup” media
campaign initiated by the Corn Refiners Association in 2008, not all
sugar is created equal. Further, high-fructose corn syrup (HFCS) isn’t
“natural” or simply “okay to eat in moderation,” as these advertising
claims suggest. In fact, only plants and foods picked off a vine or tree
(i.e., fruits and vegetables) contain truly natural sugars. You might
remember from your high school biology class that the body uses these
simple sugars to manufacture energy to fuel cells and organs. As an
added bonus, these foods also provide potent antioxidants to ward off
disease, including cancer. However, because HFCS is cheap to synthesize,
it lands in commercially processed food as a preservative and
sweetening agent. The fact that eating too much sugar -- especially
fructose -- makes you fat isn’t new, but the finding that too much hurts
the brain is somewhat of a surprise. One reason for this may be related
to the role of insulin in synaptic function, levels of which tend to
decrease with high fructose intake.
Why HFCS is Not Smart Choice
HFCS
has been a source of debate between natural health advocates and the
companies that produce and sell the stuff, namely the various members of
the CRA. In contrast to all the marketing spin, HFCS doesn’t it live up
to the “sugar is sugar, the body can’t tell the difference” litmus test
the CRA created. Corn syrup, the precursor to HFCS, is a liquid starch
of maize composed of malt sugar and various oligosaccharides, which
simply means multiple monosaccharides, or simple sugars. Fruits and
vegetables contain varying degrees of fructo-oligosaccharides (FOS),
commonly referred to as plain fruit sugars. This is the stuff that
Mother Nature made to make life sweeter that is also found in sugar
beets, cane sugar and honey.
HFCS,
however, is a turbo-charged sweetener that has undergone enzymatic
processing to degrade most of the glucose in the syrup into fructose.
The result is a highly processed substance that the American Medical Association suspects is a major contributor to obesity and diabetes. (1)
In addition, HFCS may contain synthetic and/or genetically modified
ingredients and, according to a 2012 study published in “Clinical Epigenetics,” appears to negatively affect metabolic functions in
autistic children that are necessary to eliminate heavy metals from the
body. (2)
Here’s
another bitter truth to swallow: The U.S. Department of Agriculture
estimates that the average American consumes about 35 pounds of
high-fructose corn syrup every year from soft drinks, cereals, fruit
juices, condiments, baked goods, canned fruit goods and even baby food.
(4)
Proof is in the Rat Race
The
UCLA scientists challenged two groups of rats to learn to run a
specific course through a maze, which was equipped with visual cues but
only one exit and several distracting dead-end holes. After two training
sessions per day for five days, the maize-efficient rats were given a
diet that included standard rat chow and a fructose solution to drink
instead of plain water in both groups, but one group was treated to a
supplement of flaxseed oil and docosahexaenoic acid (DHA).
After six weeks, it was time to revisit the maze. The researchers found that the group that received omega-3 and DHA ran the course more accurately and much faster, while their sugar-loaded counterparts showed signs of decreased neurotransmission in their brains. What’s more, these rats also developed insulin resistance, a key factor in the development of type II diabetes. Unable to utilize this hormone properly in the brain, these rats evidenced impaired neural signaling and memory loss – in just six weeks. (3) Dr. Fernando Gomez-Pinilla, one of the study authors, suspects that fructose may inhibit the ability of insulin to regulate sugar utilization in brain cells involved in processing thoughts and emotions. The study, funded by the National Institute of Neurological Disorders and Stroke, was published in the May 15, 2012 issue of “Journal of Physiology.” (4)
After six weeks, it was time to revisit the maze. The researchers found that the group that received omega-3 and DHA ran the course more accurately and much faster, while their sugar-loaded counterparts showed signs of decreased neurotransmission in their brains. What’s more, these rats also developed insulin resistance, a key factor in the development of type II diabetes. Unable to utilize this hormone properly in the brain, these rats evidenced impaired neural signaling and memory loss – in just six weeks. (3) Dr. Fernando Gomez-Pinilla, one of the study authors, suspects that fructose may inhibit the ability of insulin to regulate sugar utilization in brain cells involved in processing thoughts and emotions. The study, funded by the National Institute of Neurological Disorders and Stroke, was published in the May 15, 2012 issue of “Journal of Physiology.” (4)
Obviously,
more research is needed before extrapolating the findings of this study
to humans. Still, it would be reasonable and prudent to presume that
similar limiting effects in cognitive function may occur in people who
indulge in too many sweets of the processed variety. At the very least,
the potential long-term implication of habitually drinking beverages and
eating processed foods sweetened with HFCS is something to think about.
Gomez-Pinilla suggests satisfying your sweet tooth with Greek yogurt
and berries, or even the occasional piece of dark chocolate. A
supplement that delivers one gram of DHA per day is also recommended, as
well as increasing your intake of foods high in omega-3 such as nuts,
seeds and salmon (wild NOT “farm raised).
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