Targeted nutritional strategies in postoperative care.

Immunonutrition, which uses specific nutrients to modulate the immune response, has emerged as a vital adjunct to perioperative care. Surgery-induced stress triggers immune responses that can lead to complications, such as infections and delayed wound healing. Traditional nutritional support often overlooks the immunological needs of surgical patients. Immunonutrition addresses this oversight by providing key nutrients, such as arginine, omega-3 fatty acids, glutamine, nucleotides, and antioxidants (vitamins C and E) to enhance immune function and support tissue repair. This review examined the efficacy and safety of immunonutrition in surgical settings, guided by the recommendations of the American Society for Parenteral and Enteral Nutrition and the European Society for Clinical Nutrition and Metabolism. Both organizations recommend immunonutrition for high-risk or malnourished patients undergoing major surgery and support its use in reducing complications and improving recovery. The key nutrients in immunonutrition aim to improve immune cell function, reduce inflammation, and enhance wound healing. Clinical studies and meta-analyses have demonstrated that immunonutrition lowers the infection rate, shortens the length of hospital stay, and accelerates recovery. Challenges hindering the clinical application of immunonutrition include cost, logistics, and a lack of standardized and personalized protocols. Future studies should focus on biomarker-driven approaches, pharmacogenomics, and innovative nutrient formulations. Addressing these issues will help to integrate immunonutrition into clinical practice, ultimately improving surgical outcomes and patient recovery.