Generally speaking, the elderly should eat more light and easy to digest, protein, calcium and other content of the food is good for the body, such as bird's nest, soy milk, yogurt and so on. The specific analysis is as follows:

1. Bird's nest: the elderly should eat more bird's nest is good for the body. Bird's nest is rich in protein, calcium, iron, potassium and other nutrients, has the effect of enhancing immunity, promote sleep, etc., and it is easier to digest.

2. Soybean milk: the elderly should eat more soybean milk is good for the body. Soybean milk is rich in protein, potassium, vitamin A, calcium and other nutrients, easier to digest and absorb, with a strong body, regulate endocrine, lowering blood fat and other effects.

3. Yogurt: the elderly to eat more yogurt is good for the body. The main raw material of yogurt is milk, rich in protein, calcium, vitamin B1, zinc and other nutrients, can supplement nutrition, and yogurt also contains probiotics, can improve intestinal function.

Elderly people should ensure balanced nutrition on a daily basis, maintain sufficient sleep, avoid staying up late and avoid overwork.