There is no rule on when it is good for the elderly to drink soy milk throughout the day, it can be drunk in the morning or in small amounts throughout the day. Soymilk is a nutritious drink made from soybeans. Soybean milk is rich in high quality protein, unsaturated fatty acids and soybean oligosaccharide and soybean polysaccharide, and contains calcium, iron, zinc and other minerals and vitamins such as vitamin B₁, vitamin B₂, niacin and other vitamins. Among them, soybean milk in the soybean protein for high-quality protein, absorption rate is relatively high. Due to the nutritional richness of soy milk, the elderly should drink soy milk in moderation to supplement nutrition. The time to drink soy milk is not strictly regulated, you can drink it at breakfast or at other times. Generally according to the actual situation of the elderly, in the elderly preferred time to drink soybean milk in moderation can be. It should be noted that the oligosaccharides in soybeans cannot be fully absorbed by the body, which may lead to bloating and increased gas, thus increasing gastrointestinal discomfort in the elderly. Therefore, for elderly people who are prone to bloating, it is recommended that they drink it in small amounts and in divided doses every day, so as to ensure nutrition and reduce the risk of bloating. Soy milk is not suitable for elderly people who are allergic to soybeans. If the elderly feel unwell after consuming soymilk, it is recommended that they go to the hospital in time.