


The vegetables and fruits that exist today contain large quantities of minerals and nutrients than those produced by 50-year rates
Degrees, ranging between 5 and 40 per cent.
Said Ronald Davis, a researcher who previously worked with the Institute of Biochemistry at the University of Texas, the quantities of magnesium, iron, calcium and zinc in the natural products are less significant in the agricultural products that we are dealing with today from those addressed by our ancestors, although the extent of which has increased to eat because of modern technologies.
Davis acknowledged that some historical data that determine the quantities of metals in agricultural materials could be inaccurate, because of primitive technology used then, as in the case of measuring the ratios of the iron in vegetables such as spinach.
However, he pointed out that the facts remain the same directory in which evidence can be adopted for comparison, as noted in this context that some farms have maintained samples of their products back to decades ago, allowing analysis and study.
The researcher said the U.S. agricultural products more than today's volume of old products, but it is considered that this increase does not go beyond being a "dry," containing a low concentration of vitamins and minerals, according to the magazine "Time."
Davis added that the scientists to focus on the fundamental point has not been a lot of follow-up, which reduced the amount of metals and materials useful in genetically modified products, which have been engineered to increase production.
In this context, Davis cautioned that the study on the genetic changes of broccoli, the product in southern California between 1996 and 1997 showed a shortage in the quantities of protein and amino acids supposed presence, along with six levels down a variety of metals.
Davis, saying that the process of altering genes to increase the focus on the doubling of production volume through the selection of genes related to Articles starchy "Carbohydrates" care instead of nutrient elements in crops.
Davis did not fail to note the contribution of factors related to soils and farming methods this phenomenon, notably the frequent resort to the cultivation of one crop, thus leading to the depletion of certain minerals from the soil, as well as the harvesting of agricultural products in times of early for commercial reasons, something that prevents it from becoming saturated with nutrients from the soil
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