**2. Conclusion**

The use of direct water from the tap was treated with drops of chlorine or silver nitrate, which reflects that the population has knowledge about the microbiological form of disinfection, but not for the removal of metals or other toxic substances. The trust that people perceived that they used tap water for food, because they use to boiling the water became drinkable and safe. But it is known to boil water from food or with food, only eliminate microbiological and non

The first evidence in two communities of the state of Guanajuato (Cútaro and San Agustín) of the presence of arsenic in water and food consumption, biological incorporation to metal, together with environmental factors such as feeding and nutrition practices, socioeconomic, deficiency in public services and lack of access to an innocuous source of water, reflect a risk to the health of the inhabitants of these communities. On the other hand, the evidence shows that the greater the deterioration of the nutritional status, the greater the harmful effects in the organism derived from exposure to arsenic. In addition, several studies show that the consumption of several nutrients, in isolation, improves the detoxification of the metal and

The poor nutritional status in these populations, either due to the excess or nutritional deficiency, the history that supplementation with some nutrients improves the nutritional status, and therefore, the metabolism of the metal in the body, besides that there is no evidence of treatment with A multivitamin supplementation scheme in school population exposed to arsenic are factors that justify the analysis of a multivitamin supplementation plus a dietary regime, on the urinary excretion of arsenic in the school population of the communities of San Agustín and Cútaro as well as others that there are high levels of the

The theme of the study of food and water security, derived from the experience of studies in the population of Guanajuato, as intervention proposals from the nutritional clinic, derived from the basis of its metabolism (absorption and excretion) where the consumption of nutrients and access to nutrients is through food and these when people have food security [6] and food security achieved an adequate nutritional status and thus a way to mitigate the toxicity problems of the metalloid. Reason for which the designs of the studies integrated the dietary evaluation and the nutritional status until to design a clinical nutritional intervention study in a follow-up population, entitled "*Effect of a multivitamin supplementation of 4 weeks on the nutritional status and urinary excretion of arsenic in adolescents*." The main objective was to measure the effect of multivitamin supplementation on nutritional status and urinary excretion of arsenic in 45 adolescents exposed to the metalloid through drinking water. The vitamin supplement was given daily, for 4 weeks, and to the adolescents. Nutritional status, arsenic levels in urine and drinking water were measured too. The main findings

increasing their consumption through the supplement during the intervention, and with an increase of approximately 1 g/dL of hemoglobin, increase in fat-free mass, decrease in the percentage of body fat, with a higher urinary excretion of arsenic [35.91 μg/g Cr (95% CI = 23.2–74.8 μg/g Cr)] from the 1st week of intervention, which was statistically significant

, B6

, B12, E, C, selenium, and iron,

toxicological risks, such as eliminating arsenic in water [10, 35].

reduces the damage to the organism [36–39].

50 Arsenic - Analytical and Toxicological Studies

were a low intake for proteins, fiber, folic acid, vitamin B<sup>2</sup>

metal [40].

Adequate nutrition in childhood and adolescence as well as in all stages of life, should not only be promoted to prevent chronic degenerative diseases, which entails an inflammatory problem, it is important to equip people with the mechanisms that promote the greatest excretion of the metalloid combined with adequate growth and development. There are environmental factors that cannot be avoided, such as exposure to heavy metals through natural sources such as water, but food and water security as determinants of the mitigation of health risks from exposure to arsenic.
