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Malnutrition is common and severe, driven by tumor-related anorexia–cachexia, mechanical obstruction, and metabolic stress from surgery and chemotherapy. Perioperative nutritional treatment has evolved from a secondary role into a cornerstone, improving clinical outcomes by enabling proactive nutritional screening, assessment, and individualized prehabilitation across the care continuum.",{"@graph":69,"@context":122},[70,84,105],{"@type":71,"itemListElement":72},"BreadcrumbList",[73,77,79,82],{"item":74,"name":75,"@type":76,"position":8},"https://docshare.wps.com","Home","ListItem",{"item":78,"name":9,"@type":76,"position":14},"https://docshare.wps.com/document/",{"item":80,"name":35,"@type":76,"position":81},"https://docshare.wps.com/document/healthcare/",3,{"item":83,"name":65,"@type":76,"position":19},"https://docshare.wps.com/document/perioperative-nutritional-treatment-for-patients-with-gastric-cancer-focusing-on-recent-controversial-issues/353517/",{"url":83,"name":65,"@type":85,"image":86,"author":91,"headline":65,"publisher":94,"fileFormat":97,"inLanguage":63,"description":67,"dateModified":98,"datePublished":99,"encodingFormat":97,"isAccessibleForFree":100,"interactionStatistic":101},"DigitalDocument",{"url":87,"@type":88,"width":89,"height":90},"https://docshare.wps.com/thumbnails/perioperative-nutritional-treatment-for-patients-with-gastric-cancer-focusing-on-recent-controversial-issues/353517.png","ImageObject",300,407,{"name":92,"@type":93},"Himbo","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-09-26","2026-09-22",true,{"@type":102,"interactionType":103,"userInteractionCount":81},"InteractionCounter",{"@type":104},"ViewAction",{"@type":106,"mainEntity":107},"FAQPage",[108,114,118],{"name":109,"@type":110,"acceptedAnswer":111},"Why is nutritional status critical in gastric cancer treatment?","Question",{"text":112,"@type":113},"Nutritional status determines susceptibility to treatment toxicity, postoperative complications, quality of life, and overall survival. Malnutrition is frequent and severe in gastric cancer patients.","Answer",{"name":115,"@type":110,"acceptedAnswer":116},"What factors contribute to malnutrition in gastric cancer?",{"text":117,"@type":113},"Malnutrition arises from tumor-induced anorexia–cachexia, mechanical obstruction, and metabolic stress from anticancer therapies such as surgery and chemotherapy.",{"name":119,"@type":110,"acceptedAnswer":120},"How has perioperative nutritional treatment changed over time?",{"text":121,"@type":113},"It has shifted from being secondary to surgery or chemotherapy toward a cornerstone of comprehensive management. The move supports proactive nutritional screening, assessment, and individualized prehabilitation.","https://schema.org",{"og:url":83,"og:type":124,"og:title":65,"og:site_name":95,"og:description":67},"article",{"robots":126,"canonical":83},"index,follow",{"doc_id":128,"site_id":62},353517,1790360491,{"code":4,"msg":5,"data":131},{"doc_id":128,"user_id":132,"nickname":92,"user_avatar":133,"doc_module":4,"category_id":34,"category_name":35,"doc_title":65,"doc_description":67,"doc_content":134,"file_id":135,"file_url":136,"file_type":137,"file_size":138,"view_count":81,"is_deleted":4,"is_public":8,"is_downloadable":8,"audit_status":8,"page_count":139,"language":140,"language_code":63,"site_id":62,"html_lang":63,"table_of_contents":141,"faqs":142,"seo_title":143,"seo_description":67,"update_tm":144,"read_time":145},687197100911,"https://ap-avatar.wpscdn.com/avatar/a000239b6f1da00475?x-image-process=image/resize,m_fixed,w_180,h_180&k=1785132997149421697","J Gastric Cancer. 2026 Jan;26(1):92-105 [https://doi.org/10.5230/jgc.2026.26.e1](https://doi.org/10.5230/jgc.2026.26.e1)[ ](https://doi.org/10.5230/jgc.2026.26.e1)pISSN 2093-582X·eISSN 2093-5641  \nReview Article  \nReceived: Oct 14, 2025  \nRevised: Nov 10, 2025  \nAccepted: Nov 12, 2025  \nPublished online: Dec 16, 2025  \nCorrespondence to  \nDongwoo Shin  \nDepartment of Surgery, Dongtan Sacred Heart Hospital, Hallym University, 7 Keunjaebong-gil, Hwaseong 18450, Korea.  \nEmail: [shin519@hallym.or.kr](shin519@hallym.or.kr)  \nCopyright © 2026. Korean Gastric Cancer Association  \nThis is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License ([https://](https://)[ ](https://)[creativecommons.org/licenses/by-nc/4.0](creativecommons.org/licenses/by-nc/4.0)) which permits unrestricted noncommercial use, distribution, and reproduction in any medium, provided the original work is properly cited.  \nORCID iDs  \nDongwoo Shin   \n[https://orcid.org/0000-0002-9312-4269](https://orcid.org/0000-0002-9312-4269)  \nConflict of Interest  \nNo potential conflict of interest relevant to this article was reported.  \nPerioperative Nutritional Treatment for Patients With Gastric Cancer: Focusing on Recent Controversial Issues  \nDongwoo Shin   \nDepartment of Surgery, Dongtan Sacred Heart Hospital, Hallym University, Hwaseong, Korea  \nABSTRACT  \nDespite the many advances in treatment methods for gastric cancer, it remains a leading cause of cancer-related mortality worldwide, with treatment outcomes intrinsically linked to the nutritional status of the patient. Malnutrition is a frequent and severe complication inpatients with gastric cancer, arising from a confluence of factors including tumor-induced anorexia-cachexia syndrome, mechanical obstruction, and the metabolic stress of anticancer therapies including surgery and chemotherapy. Historically, nutritional support has often been a secondary consideration compared with surgical intervention or chemotherapy. However, a growing body of evidence has repositioned perioperative nutritional treatment as a cornerstone of comprehensive gastric cancer management. It is known that malnutrition can result in poorer clinical outcomes, including increased susceptibility to treatment-related toxicity, higher rates of postoperative complications, diminished quality of life, and a reduction in overall survival. Further, the paradigm shift toward proactive nutritional screening and assessment as standard clinical practice has allowed for timely and individualized prehabilitation. We conclude that advancements in nutritional science have fundamentally transformed gastric cancer management. The integration of tailored nutritional strategies throughout the journey of a patient from diagnosis through treatment and into survivorship is no longer just supportive, but a therapeutic modality in its own right. This symbiotic relationship emphasizes the necessity of a multidisciplinary approach, whereoncologic and nutritional care are seamlessly interwoven to optimize patient outcomes andredefine the standards of gastric cancer treatment.  \nKeywords: Gastric cancer; Surgery; Nutritional care; Treatment-related toxicity; Postoperative complications  \nINTRODUCTION  \nAlthough the overall incidence of gastric cancer is declining, it remains one of the most common cancers in Korea and the fifth most common malignant tumor globally, with approximately 1.1 million new cases and approximately 800,000 deaths reported in 2020 [1] .  \n[https://jgc-online.org](https://jgc-online.org) 92  \nPerioperative Nutrition  \nYear  \nFig. 1. Proportions of early and advanced gastric cancer occurrence rates over time.  \nAdapted from‘Korean Gastric Cancer Association-led nationwide survey on surgically treated gastric cancers in 2023’ by Kim et al. [3] .  \nDuring the past several decades, the overall outlook for gastric cancer has gradually improved with advancements in treatment and diagnostic method","cbCaiuU9vFfsFhLF","https://ap.wps.com/l/cbCaiuU9vFfsFhLF","pdf",1233820,14,"English","# Abstract\n# Introduction\n## Gastric cancer burden and survival trends\n## Clinical nutrition advances and perioperative care","[{\"question\":\"Why is nutritional status critical in gastric cancer treatment?\",\"answer\":\"Nutritional status determines susceptibility to treatment toxicity, postoperative complications, quality of life, and overall survival. Malnutrition is frequent and severe in gastric cancer patients.\"},{\"question\":\"What factors contribute to malnutrition in gastric cancer?\",\"answer\":\"Malnutrition arises from tumor-induced anorexia–cachexia, mechanical obstruction, and metabolic stress from anticancer therapies such as surgery and chemotherapy.\"},{\"question\":\"How has perioperative nutritional treatment changed over time?\",\"answer\":\"It has shifted from being secondary to surgery or chemotherapy toward a cornerstone of comprehensive management. The move supports proactive nutritional screening, assessment, and individualized prehabilitation.\"}]","Perioperative Nutritional Treatment for Patients With Gastric Cancer - Focusing on Recent Controversial Issues | PDF",1790105885,35]