Current perspectives on malnutrition and immunomodulators bridging nutritional deficiencies and immune health

Abstract Background Malnutrition is still one of the most serious and prevalent worldwide health problems, especially found in low- and middle-income countries, which impairs immune functions and increases susceptibility to infection. This study investigates the complex association between malnutrition and immune dysfunction, and the role of immunomodulators in restoring immune function. This study analyzes the different types of malnutrition, including protein-energy malnutrition and micronutrient deficiencies, and their consequences to the immune system through inhibited cytokine and immune cell production. Main body Immunomodulators, which include natural agents such as phytochemicals and probiotics, as well as synthetic agents, may help reduce immune dysfunction related to starvation. This article categorizes these agents and discusses their mechanisms of action, including their role in regulating inflammatory pathways, increasing the generation of immune cells, and augmenting global immune response. In addition, therapeutic approaches utilizing immunomodulation in conjunction with nutritional therapies, such as micronutrient supplementation (vitamins A, C, D and zinc) or natural immunomodulators, to improve inflammatory and gastroenterological disease states are discussed. Case reports and recent studies are provided that provide evidence supporting the effectiveness of immunomodulation and nutritional therapy to improve clinical outcomes in vulnerable populations. Conclusion While there is a promise for immunomodulators, there are safety, long-term efficacy, and ethical issues to address before they could widely be employed. Each step of the research calls for applied, working example of immunomodulatory medicine that could be tailored to health programs internationally. The research highlights the vital role of immunomodulators in the treatment of malnutrition and encourages holistic approaches to improve immunological health worldwide.