Mr. Editor Gastric cancer, a malignant neoplasm that originates in the cells of the stomach lining, represents a significant burden in terms of mortality worldwide. According to data from the American Cancer Society, the estimated mortality rate is 4.9 per 100,000 people in 2021. In South America, mortality rates from gastric cancer continue to be of concern, with countries such as Chile and Peru reporting mortality rates of 18.7 and 13.6 per 100,000 persons respectively in 2021(1). Gastric cancer being a major pathology mentioned in other previously published studies(2). Vitamin D is a fat-soluble hormone that occurs in two main forms, D2 (ergocalciferol) and D3 (cholecalciferol). It is produced in the skin under exposure to ultraviolet light or derived from plant sterol. It is metabolized in the liver and kidney to active forms. In addition to its role in calcium homeostasis, studies s...