发酵奶不仅含有丰富的钙、蛋白质、核黄素和维生素Ｂ１２等营养素，具有很高的营养价值，而且还含有大量对人体健康很有益处的活益生菌。酸奶可减轻乳糖吸收不良的症状，而酸乳酒则可能具有抗菌和增强免疫的作用。含有双歧杆菌的发酵奶能增加肠道中的双歧杆菌，从而改善肠道菌群；干酪乳杆菌则具有缩短腹泻病程的作用。随着今后使用更严谨的方法和现代统计分析方法进行更深入的人体试验研究，必将产生有关发酵奶保健作用的更为详细的信息 Fermented milk is not only rich in nutrients such as calcium, protein, riboflavin and vitamin B12, it has high nutritional value, but also contains a large number of probiotics beneficial to human health. Yogurt can alleviate the symptoms of lactose malabsorption, while yogurt wine may have antibacterial and immune enhancement. Bifidobacterium containing fermented milk can increase intestinal bifidobacteria, thereby improving the intestinal flora; Lactobacillus casei has the effect of shortening the duration of diarrhea. With more rigorous methods and modern statistical methods for conducting more in-depth human trials in the future, more detailed information about the health benefits of fermented milk will inevitably emerge