“…In recent years, numerous studies have shown that the milk of humans and cows is enriched with miRNAs (Chen et al, 2010;Weber et al, 2010), most of which are packed in extracellular vesicles that are 30-120 nm in diameter, namely exosomes, which are derived from all types of cells and released into all biological fluids, such as blood plasma, serum, urine, breast milk, colostrum, and more (Kosaka et al, 2010;Gu et al, 2012;Xiao et al, 2018;Yun et al, 2021;Zeng et al, 2020;Zeng et al,2021). Zhang et al suggested that exogenous miRNAs (ex-miRs), specifically from plants, can withstand the digestion process, enter the animal's bloodstream through the gastrointestinal tract, and regulate gene expression (Zhang L. et al, 2012, Zhang et al, 2012Dickinson et al, 2013;Laubier et al, 2015;Title et al, 2015;Auerbach et al, 2016;Rakhmetullina et al, 2020). It was shown that when piglets were fed pig or cow's milk, miRNAs could be absorbed both in vivo and in vitro, which creates the basis for understanding the participation of miRNAs in physiological functions (Lin et al, 2020).…”