“…Consequently, the ions are rapidly converted into metal salt precipitates, which may lead to relatively inferior ion retention in the alkaline environment of the digestive tract (Wang, Zhang, et al., 2023; Zhang, Ding, et al., 2021). Thus, to improve the availabilities of metals under these conditions, numerous alternatives, including liposomes, polymer nanoparticles, polysaccharides, hydrogels, and self‐emulsifying delivery systems, to protect minerals have gradually evolved (Zhang et al., 2022). Among these delivery systems, although hydrogels demonstrate strong local drug penetrations, their mechanical strengths and specificities are inferior.…”