Understand the physical condition of the mother-in-law, such as the common chronic diseases of middle-aged and elderly people. According to the physical condition, then choose to buy nutrition. For example, if the other person's blood sugar is high, it will be embarrassing and rude for you to buy something very sweet.

Note: Nutritions refer to articles that can supplement nutrients that the human body lacks and loses. Types are divided into basic type, healthy type and selective type, such as soybean isoflavone, seal oil and royal jelly.

Basic nutrition includes vitamins, minerals, fiber, lactic acid bacteria, protein, lecithin, EPA, DHA, collagen, chondroitin and so on. These ingredients are the constituent elements of the human body and are "indispensable nutrients" to maintain good health.