ALDH2 and hyperinsulinemic hypoglycemia, familial, 4: Helicobacter pylori, atrophic gastritis, alcohol consumption, tobacco smoking, acid-suppressive drugs, ALDH2-deficiency associated with alcohol consumption, pickled foods, fermented soy foods, and some fermented dairy products are risk factors for stomach cancer [1,2,38,43,111,112,113,114,115,116,117].