Drinking soda frequently and in excess can cause seizures asthma , according to a study Mayo Clinic , where it is shown that the sodium benzoate , conservative that is added to this type of drinks and certain foods, is responsible.
Also, according to a study of the University of Adelaide , Australia, drinking too many soft drinks could not only increase the risk of asthma , but also of chronic obstructive pulmonary disease (COPD).
This study, published in the journal Respirology, was applied to more than 17 thousand people, who drank more than two glasses or half a liter of soft drink a day, of which more than 13% and 15% suffered asthma Y COPD , respectively.
In this regard, the researchers observed that people who consumed that amount were 1.2 times more likely to suffer from asthma , and 1.7 times more likely to suffer from COPD , that those that did not consume soft drinks.
The sodium benzoate is a sodium salt produced by the combination of benzoic acid with sodium hydroxide, which is used within the food industry as a preservative and corrosion inhibitor. In addition, it can be prescribed as medicine for the treatment of disorders in the urea cycle.
After drinking soda, and particularly sodium benzoate, the body absorbs the sodium salt in the gastrointestinal tract. The liver then metabolizes it, resulting in the formation of hippuric acid, which is excreted with urine.
However, when drinking excessively, this process is altered, so it is not eliminated properly and poisoning occurs, a factor that triggers both asthma , As the COPD , allergies and even sanaphylactic hock , according to the Consumer Dictionary of Food Additives FSA (UK).
According to the researchers, the risk is related and increases more with the dose, which means that the more soft drinks are consumed, the more likely they are to suffer from COPD or asthma .