In the past few years, there’s been some discussion about whether fluoride is in many toothpastes, could have a negative impact on the mental development and the nervous system. A team of researchers from Germany, Austria and Switzerland, comes to the conclusion that the current intake of fluoride in Europe is not a cause for concern.
Through drinking water, food and dental care products, we take fluoride. A trace element that can reduce the risk of tooth decay significantly, however, it was discussed in the last few years, more health risks. Some studies have reportedly found a correlation between high fluoride intake and the intelligence of children. On closer inspection, this statement is not to understand: "Most of the included studies are methodologically created to bad, to confirm a connection. So distortion will be the end of factors such as family social status, the contribution of other fluoride sources to the exposure or the uptake of neuro-toxins such as arsenic in the drinking water are inadequate or non-berücksichtigt", the toxicologist Professor Jan Hengstler at the Leibniz Institute for work research at the Technical University of Dortmund, explained.
Studies with widersprüactual results
So a relationship really recover, long-term studies are required. There are, however, only two of which are in a no Association was observed, and in the other only for boys – in the case of the girl, the intelligence quotient was even higher when their mothers were exposed during pregnancy to higher fluoride concentrations.
An analysis of 26 laboratory studies in which the effects of fluoride were investigated on cells, showed that the fluoride concentrations in the human blood are very far below those that affect nerve cells. Hengstler therefore comes to the conclusion: "The currently available Knowledge does not justify, fluoride as developmental neurotoxic in the values to be classified, to which we are exposed to in Europe."