Drinking yogurt and plain milk for the elderly both have certain benefits, and both can provide nutritional supplements for the elderly. 1. Yogurt: Yogurt is a food with high carbohydrate content and is rich in calcium, phosphorus, vitamin B₂, as well as threonine, lysine and other amino acids and minerals. Therefore, the nutritional value of yogurt is relatively high, the human intestinal tract is also easy to absorb. But most of the yogurt on the market have added sugar, so the elderly with diabetes should not drink. 2. Pure milk: pure milk is rich in protein and fat, can maintain the basic physiological functions of the human body. On average, it contains 3 grams of protein and 3.2 grams of fat per 100 milliliters. Pure milk can be supplemented for the elderly rich in protein and energy, and generally pure milk without additional sugar, more suitable for the elderly suffering from diabetes and so on. Yogurt and plain milk are both food and do not have any therapeutic effects, so the elderly can drink them in moderation, but it is not recommended to drink them on an empty stomach. If the body or the gastrointestinal tract has symptoms of discomfort, it is also not suitable for drinking, and should go to the regular hospital for examination and symptomatic treatment.