Paper—Reducing the Risk of Gastric Cancer Through Proper Nutrition – A Meta-Analysis Reducing the Risk of Gastric Cancer Through Proper Nutrition – A Meta-Analysis https://doi.org/10.3991/ijoe.v18i07.30487 Danish Jamil 1,2 ( * ) , Sellappan Palaniappan 1 , Syed Saood Zia 2 , Asiah Lokman 1 , Muhammad Naseem 2 1 Department of Information Technology, Malaysia University of Science and Technology, Petaling Jaya, Malaysia 2 Department of Software Engineering, Syed University of Engineering and Technology, Kara- chi, Pakistan danish.jamil@phd.must.edu.my Abstract—Data Sources: Articles for this paper were sourced from Pub- Med and Google Scholar databases. Data Extraction: Human studies published in English from 2015 to 2021 were included. Two reviewers initially assessed abstracts of 958 papers and 192 papers were selected for future assessments. After a full review, 38 articles were selected. Results: Dietary salt is a high-risk factor for Gastric Cancer (GC) while red meat and a high-fat diet increase the risk. Alcohol intake is only a risk if consumed heavily. Conclusion: Dairy foods, vitamin C, smoked food, rich food, and Helicobacter pylori are included in the etiology of GC. So are fresh fruits, vegetables, and specific refined grains. Salt, fats, spicy foods, alcohol, red meat, and pepper increase the risk. Knowing cancer patients' nutrition problems would help intervention measures be taken to remedy the situation. Keywords—epidemiology, classification, risk factors, helicobacter pylori, ear- ly gastric cancer (EGC), adenocarcinoma (ADC), quality of life (QoL) 1 Introduction GC is a malignant tumor commonly linked to malnutrition and other nutritional de- ficiencies. More than one million new GC cases were identified in the year 2020. Nearly 800,000 people died from it making it the sixth most prevalent cancer global- ly. Effective diagnosis and treatment improve these patients' quality of life and sur- vival. Adenocarcinoma (ADC), the most common type of cancer, accounts for up to 85 percent of all cases of GC. Other types of cancer that are not as common include lymphoma, digestive system tumors, and neuroendocrine tumors[1].GC's origins are still a mystery. It be categorized as cardiac (originating from the gastroesophageal junction) or non-cardiac (originating elsewhere) (distal). Nevertheless the incidence of this condition is predispose by several risk factors. Infection with h.pylori, one of the most significant factors. Factors related to an increased risk of developing perni- cious anemia or Epstein-Barr virus infection include obesity, male gender, smoking iJOE ‒ Vol. 18, No. 07, 2022 115