[Effect of a four-week vitamin and mineral supplementation on the nutritional status and urinary excretion of arsenic in adolescents].

Introduction: adequate nutrition in adolescence is important for growth and development. There are environmental factors that cannot be avoided, such as exposure to heavy metals through natural sources such as water. Arsenic is a metalloid that can cause damage to health (alterations in nutritional status, diabetes, cancer) and it has been found in concentrations higher than those allowed in drinking water.