酸奶是使用有益人体健康的微生物在牛奶中发酵制成的。酸奶不仅保留了鲜奶中的蛋白质、脂肪和糖类等营养成分,而且还能刺激胃酸分泌,增加食欲,促进人体新陈代谢,使营养易被吸收。酸奶还有降低血胆固醇,防止动脉粥样硬化,治疗消化不良、腹胀、腹泻等作用,特别是治腹泻很有效。同时,因为酸奶中的乳酸杆菌能产生许多乳酸,它可以降低肠道内的pH值,抑制腐败菌的生长,减轻毒性物质对人体的侵害。综上所述,酸奶不但具备了牛奶中的全部营养成分,而且容易被消化和吸收,还具有一定的保健功能。因此,酸奶在国外被誉为长寿食品。 Yogurt is made using fermented milk that is beneficial to human health. Yogurt not only retains the milk protein, fat and carbohydrates and other nutrients, but also stimulate gastric acid secretion, increase appetite and promote human metabolism, nutrition is easily absorbed. Yogurt also lower blood cholesterol, prevent atherosclerosis, treatment of indigestion, bloating, diarrhea and other effects, especially the treatment of diarrhea is very effective. At the same time, because lactobacillus in yogurt can produce a lot of lactic acid, it can reduce the intestinal pH, inhibit the growth of spoilage bacteria and reduce the toxic substances on the human body. In summary, yogurt not only has all the nutrients in milk, but also easily digested and absorbed, but also has some health functions. Therefore, yogurt in foreign countries known as longevity food.