SWEET BUT DEADLY PART 4
The food industry is proud when can bring on the market fat-free foods. But what is not mentioned is that they contain large amounts of sugar, which are probably more harmful than fat. Sugary drinks, consumed in industrial quantities are the most worrying component in our alimentation.
So far the dangers related to fructose have not been known and, in the past 25 years, the consumption has increased enormously. The kitchen sugar, as well as honey, it is composed of fructose and glucose in almost equal parts; with any food or drink that contains sugar or honey, we introduce into the body a large dose of fructose, which has harmful effects.
Of course, everyone is tempted to believe that will be one of those who never become insulin resistant. But who can be sure about this?
On the other hand, if you have an unfavorable genetic inheritance, the diet can, however, to “help” a lot. Think about the Pima indians of southern Arizona. Almost all are disadvantaged by the obesity genotype. With aging, almost all get type 2 diabetes. Many are already insulin resistant at the age of 8 years. But this plague did not appear until after Pima Indians adopted the Western diet. Among those who continued the traditional diet, diabetes is met three times rarely. Genes doesn not result necessarily the destiny.
The alimentation can play a role in myopia too, at least this is the conviction of biologist Loren Cordain from the State University Colorado, and the nutritionist Jeannie Brand of the University of Sidney.
Foods rich in refined glucides – sugar, honey, sweets and white bread – grow a lot the insulinemia level. This influences the eyeball development, increasing its length in a abnormal way producing the myopia.
Remembered authors argue that, in this way, might be explained the myopia frequency increasing in the last 200 years, in industrial countries.
Refined glucides are absorbed very quickly that, in a short time, the body is invaded by a large amount of glucose. The response to the sudden increasing of the glucose is a exaggerated secretion of insulin. Hyperinsulinaemia lowers the protein 3 that fix the insulin. This can disturb the delicate processes, that normally regulates the eye elongation and lens development. And if the eyeball grows too long, ie becomes too long, the lens may not flatten sufficient enough to project the image precisely on the retina.
Epidemiological data sustain this explanation. At the beginning of the XX century, among the pacific islanders and eskimos myopia was met with a frequency less than 1%; now it is found in 50%. Another statistics show that the islands that maintained the traditional alimentation that not consumes refined glucides myopia in children only meets at a ratio of 2%.
Finally, the authors supports their conviction and on the observation that the probability of developing myopia is higher in people overweight and those with type 2 diabetes, in both statuses being elevated insulin levels in the blood.