Gastric cancer is one of the most common types of cancer. There are geographical and racial differences in the prevalence of gastric cancer in different societies. The present study aims to investigate the food consumption patterns in patients with gastric cancer in Mazandaran.This case-control study was conducted among 100 patients with gastric cancer and 200 healthy controls. Two questionnaires including demographic information, and food frequency were completed by all participants.The mean frequency of consuming raw onions, fried onions, cucumbers and salted vegetables, red meat (beef and lamb), eggs, burgers, pizza, soy, pasteurized milk, yogurt, ice cream, liquid oil, cream, tea, pumpkin and sunflower seeds, chocolate and dates in the case group was more than control group. Findings of the current research showed that some foods such asvegetables, fish, rice and dairy are extensively found in the dietary patterns in northern of Iran.These are considered as preventive factorsin the incidence of gastric cancer.