{Reference Type}: Journal Article {Title}: Recent advances of 3-fucosyllactose in health effects and production. {Author}: Du Z;Li Z;Guang C;Zhu Y;Mu W; {Journal}: Arch Microbiol {Volume}: 206 {Issue}: 9 {Year}: 2024 Aug 14 {Factor}: 2.667 {DOI}: 10.1007/s00203-024-04104-2 {Abstract}: Human milk oligosaccharides (HMOs) have been recognized as gold standard for infant development. 3-Fucosyllactose (3-FL), being one of the Generally Recognized as Safe HMOs, represents a core trisaccharide within the realm of HMOs; however, it has received comparatively less attention in contrast to extensively studied 2'-fucosyllactose. The objective of this review is to comprehensively summarize the health effects of 3-FL, including its impact on gut microbiota proliferation, antimicrobial effects, immune regulation, antiviral protection, and brain maturation. Additionally, the discussion also covers the commercial application and regulatory approval status of 3-FL. Lastly, an organized presentation of large-scale production methods for 3-FL aims to provide a comprehensive guide that highlights current strategies and challenges in optimization.