ReviewNutrients2026
Whey Proteins and Immunity: Mechanisms Underlying Immune System Reinforcement and Protection Against Viral and Bacterial Infections.
Review in Nutrients, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
0 citing papers in PubMed.
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Corrections and comments
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Authors and funding
1 author.
Funding
No grant is acknowledged in the PubMed record.
Abstract
This review aims to examine the immunological, anti-inflammatory, antiviral, and antibacterial activities of key whey and milk proteins, specifically lactoferrin, glycomacropeptide, β-lactoglobulin, α-lactalbumin and their derived peptides, particularly lactoferricin and lactoferrampin, highlighting their potential as preventive or therapeutic agents. Whey and dairy products represent complex biological matrices that, beyond their high nutritional value, serve as reservoirs of bioactive proteins and peptides with documented health-promoting properties. It has been reported that certain whey proteins (WPs) and whey-derived peptides may contribute to improvements in both innate and adaptive immunity, exert direct antiviral and antibacterial effects while also modulating host defenses through immunoregulatory, antioxidant, and anti-inflammatory activities. These mechanisms contribute not only to enhanced resistance against viral pathogens but also to maintaining intestinal homeostasis and microbiota balance, both of which are critical during infection. In recent years, particularly in the context of the COVID-19 pandemic, natural bioactive compounds derived from whey, and, more broadly, milk, have attracted increasing attention as potential adjuncts or alternatives to conventional antivirals, with reported activity not only against SARS-CoV-2, influenza but also other viral and microbial infections. Despite encouraging in vitro and in vivo evidence, clinical validation remains limited, and the antiviral and immunomodulatory effects of WPs still require deeper mechanistic clarification. Future research should focus on identifying molecular targets, as well as characterizing the pharmacokinetics and safety profiles of WPs and WP peptides across diverse clinical settings. At the same time, attention should be given to optimizing their application as nutraceuticals or functional dairy ingredients.
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