Pure milk and yogurt have a certain protective effect on the gastric mucosa, so patients with gastric disease can drink pure milk and yogurt, there is no distinction between the two who is better. The gastric mucosa of patients with gastric disease is damaged to a certain extent, congestion, edema, erosion, bleeding, ulcers and so on. Pure milk and yogurt are rich in amino acids and vitamins, not only can cover the surface of the gastric mucosa, forming a protective film, thus preventing gastric acid, food, etc. on the gastric mucosa stimulation and damage, but also can provide the gastric mucosa repair of vitamins, proteins and other nutrients, to promote the repair and regeneration of the damaged gastric mucosa. Yogurt is fermented on the basis of pure milk, which contains probiotics such as Lactobacillus, Bifidobacterium, Bacillus subtilis, etc. It has a certain regulating effect on the function of the gastrointestinal tract, which can inhibit the growth of harmful bacteria such as Bacillus aerogenes and promote the propagation of beneficial bacteria such as Bifidobacterium, so as to maintain micro-ecological balance of the gastrointestinal tract, and improve the gastrointestinal function. Gastric disease patients are recommended to seek timely medical treatment, after clarifying the cause of the disease under the guidance of the doctor for targeted treatment.