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Abstract Our immune system depends on leucocytes or white blood cells which possess the power to produce antibodies to fight various disease‐causing pathogens. People have now realized the crucial role played by the immune system in keeping them healthy. Therefore, recent scenario has witnessed an upsurge in the demand of immunity boosting foods. The use of naturally available fruits as immunomodulators is so ubiquitous and just needs concrete scientific proofs for claiming its efficacy. Many studies have shown that fruits are abundant in bioactive compounds like vitamins (vitamin A, C, E, etc.), minerals, and phytochemicals (like β‐ carotene, flavonoids, tannins, and phenolics, etc.). These components have the potential to enhance our immunity by supporting the proliferation of lymphocytes, scavenging free radical species, reducing oxidative stress, improving anti‐inflammatory as well as immunomodulatory mechanism, and supporting aggregation of platelets. Thus, supplementation of diet with an appropriate amount of fruits daily could support body's natural defense by strengthening our immune response. In this preface, we attempt to summarize the significant role played by various phytochemicals and bioactive compounds of fruits in boosting our immune system.
Maheshwari et al. (2022) studied this question.