What makes your mouth taste bad when you are old?

　　elderly Especially the elderly with bad teeth should develop the eating habit of chewing carefully and eating slowly, and avoid swallowing dates wholeheartedly. Someone has done research and found that people who chew slowly absorb 13% more protein, 12% more fat, and 43% more fiber than those who wolf down their food.
　　
　　Chewing slowly can also clean teeth and massage gums, making teeth less susceptible to dental caries. In order to protect their teeth, the elderly can often do "tapping" exercises. That is, after brushing their teeth every morning, they first tap the upper and lower teeth lightly for 20-30 times, and then gradually increase the force for 20-30 times. They can also clench their teeth, bite up and down, and push left and right for dozens of times.
　　
　　Elderly people with bad teeth should eat mainly liquids (such as milk, soy milk), semi-liquids (such as porridge, rotten noodles), and soft foods (such as steamed cakes, steamed buns, soft rice). Food must be cooked properly and should be soft and rotten. Methods such as boiling, stewing, boiling, braising, steaming, roasting, and stewing should be used. Eat less fried, grilled and hard foods. The vegetables should be chopped as much as possible, the meat should be made into minced meat, and the fruits should be squeezed and eaten. Porridge is a beneficial choice for the elderly with bad teeth, because it can contain a variety of nutrients and is easy to digest and absorb.
　　
　　Elderly people with bad teeth should also correct their eating habits and ensure a diversified diet and balanced nutritional intake. In order to increase appetite, you can choose some condiments appropriately and change the taste frequently. In order to supplement missing nutrients, elderly people with poor teeth can also consume some nutritional health products according to their own circumstances.