I am not sure where I got this information (an article or documentary on homeschooling) but I know that there is one homeschooling family that do not use any sugar but instead uses molasses. Both parents are professors (one is a scientist) and they said that sugars (and foods that act like sugar - such as white rice, pancakes, bread, corn flakes, crackers, parsnips, potatoes, etc.) changes the brain. Below is the article entitled "What Sugar Does To Your Brain" (
http://olsonnd.com/what-sugar-does-to-your-brain/):
What Sugar Does to Your BrainWednesday, November 12, 2008
By Dr. Scott
Sugar BrainYou open a can of soda and pour that sugary drink into your mouth. The sugar travels down your throat and into your stomach; the sugar then has a very short trip from your stomach into your blood stream. As that sugar starts to move its way throughout your body, it eventually makes its way to your brain. You brain is happy with this shot of sugar you just gave it, because, while it only makes up only two percent of the body weight, your brain uses one-half of all the sugar energy in the body.1
But, is there such a thing as too much sugar for your brain? And that soda you just drank, it will cause your blood sugar to skyrocket and eventually drop; what happens to your brain then? And what about other sugar-brains questions: doesn’t sugar make you or your kids hyperactive, and doesn’t sugar change your mood?
The short answer to these all these questions is: we don’t know. Scientific studies on the effects of sugar on the brain are sparse at best and most medical professionals and organizations will say that sugar has nothing to do with mood or hyperactivity. If you are surprised by that stance, you are not alone.
Most parents have witnessed firsthand the effect of sugar on little kid’s brains. Most adults will tell you that they have experienced a sort of mental fog from eating too much sugar, not to mention the sugar high and the sugar crash. But none of these experiences mean anything to researchers who report that there are no such things as sugar highs or lows or that hyperactivity could be caused by too much sugar.
But just because there isn’t much research on how sugar and foods that act like sugar and how they affect mental function, doesn’t mean there isn’t any. This article will piece together the bits of information out there on sugar and brain function to get a better understanding of what sugar is doing to our brains. As usual, I will be including not only sugar, but foods that act like sugar in the discussion.
Brain-Derived Neurotrophic FactorLet’s start with a brain chemical called brain-derived neurotrophic factor (BDNF). BDNF is the key to understanding what happens when sugar hits our brain.
Brain-derived neurotrophic factor is responsible for the development of new brain tissue. If you didn’t have this chemical in your brain, your brain wouldn’t develop properly and you would die very soon after birth. The key to BDNF is to understand what it does: it helps to create new neurons (nerve tissue), and, therefore new memories.
You want as much BDNF around as possible if you want to learn, grow, and have normal brain functioning.
Research has shown that high sugar diets (along with high fat diets and lack of essential fatty acids) decrease a BDNF.2 In fact, the relationship between BDNF and sugar gets even more interesting: low amounts of BDNF actually leads to insulin resistance, metabolic syndrome and even diabetes.3 This means that high sugar in the blood leads to low BDNF, and then low BDNF leads to a worsening of blood sugar control, which leads to high blood sugar, which leads to worse blood sugar control… and the cycle continues.
In an interesting study on rats, it was discovered that the animals that had the best ability to learn spatial and memory tasks also had the highest amount of BDNF. It took only two months on a high sugar and high fat diet to significantly reduce BDNF in the brains of the experimental animals and for the reduction to have an effect on the animal’s ability to perform spatial and memory tasks.4
Low BDNF is no small thing as it has also been associated with depression, obsessive-compulsive disorder, Alzheimer’s disease and other dementias, Huntington’s disease, Rett syndrome, and schizophrenia.
But there is much more to the sugar-brain story than BDNF, let’s take a look.
SchizophreniaSchizophrenia is one of the best places to start when discussing how sugar affects our brains. There are quite a few clinical studies that link the consumption of grains (foods that act like sugar) with schizophrenia.5 It has long been thought that people who are schizophrenic may have a problem with the protein found in many grains (gluten) and there is a strong association between schizophrenia and Celiac disease.6
Interestingly, there is also a close association with poor blood sugar control (metabolic syndrome) and the severity of schizophrenia:
It appears that the same dietary factors which are associated with the metabolic syndrome, including high saturated fat, high glycemic load, and low omega-3 (PUFA), may also be detrimental to the symptoms of schizophrenia.7
These researcher show that once again, a diet low in essential fatty acids (omega-3) and high in fat and sugar will decrease BDNF and it makes me wonder if sugar and foods that act like sugar may be the “smoking gun” in schizophrenia.
Depression and Anxiety
As a hint that how we live and what we eat have some effect on our moods, it has long been known that coronary heart disease and diabetes all are common in people with depression.8 This means that the same dietary conditions that create heart disease and diabetes also can lead to depression. Interesting…
Sugar consumption in population studies have been shown to have a close link with major depression.9 Researchers suggest that the sugar and brain association may be due to the oxidative stress that sugar can cause or the change in beta-endorphins (brain chemicals that make us feel good) that comes about because of sugar use.
Anxiety, too, has been closely linked with sugar use in a number of studies.10
ChildrenPerhaps the biggest questions arise when discussing children, mood, behavior and sugar. While any parent would tell you that sugar can dramatically change the behavior of a child, the medical community is silent. There have been a few studies that show an association between high blood sugars and problem behaviors, but these studies have mostly been performed in children who already have blood sugar problems (such as diabetes).1112 More studies need to be done and need to be done in children with normal blood sugar.
Autism is an interesting exception to the lack of research. A review by the prestigious Cochrane review admitted that many of the studies linking foods that act like sugar (grains) and gluten to autism have been of poor quality, but they do point to one study that does show a relationship between a gluten-free diet and improvement in the symptoms of autism.13 While far from conclusive, these studies open the possibility of a solution for the growing epidemic of autism.
Digg
