关键词: 发酵乳制品；生物活性肽；老年人；健康；作用机制

Abstract: As population aging becomes a global trend, the health of the elderly has drawn extensive attention and concern from society at large. Aging, as a natural development process of life, usually involves various physiological changes, including weakened immune function, increased susceptibility to diseases, and frequent occurrence of non-communicable chronic diseases. Diet plays a certain role in maintaining human health and preventing diseases. Notably, fermented dairy products are rich in high-quality protein, and the bioactive peptides released during their fermentation, ripening or digestion have multiple biological activities such as blood pressure-lowering, antioxidant, immunoregulatory and anti-diabetic effects. Fermented dairy products are expected to become a beneficial dietary component for promoting the health of the elderly. This article aims to systematically discuss the health benefits of consuming fermented dairy products for the elderly, with a focus on elaborating the mechanism of action of these bioactive peptides in regulating aging-related health issues. It also demonstrates the potential value of fermented dairy products in promoting the health of the elderly and preventing related diseases, providing a theoretical basis for supporting healthy aging through dietary strategies.

Key words: fermented dairy products; bioactive peptides; elderly population; health; mechanism of action