Lately, Grandma Zhang has always felt hands and feetCold, waist and knees sore, the doctor said this is a symptom of insufficient kidney qi. Her son, Xiao Zhang, has been busy with work and has little time to take care of his old mother, which makes Grandma Zhang feel more and more lost. Once, when Aunt Liu, an old neighbor, came to visit, she saw Grandma Zhang's condition and said to her softly: "In spring, we elderly people should pay more attention to nourishment, especially kidney qi. She pulled out a recipe and said, "You know what? Recently, I found something good, which is our home-cooked yam. Although Grandma Zhang had heard that yam was good, she had never tried to improve her physical condition, so she curiously asked Aunt Liu for details of the method and effect. 
Aunt Liu smiled and began to introduce the efficacy of yams: "As the saying goes, 'eating yam in spring is better than tonics', which is not in vain. Yam contains a lot of nutrients, it is sweet and peaceful, suitable for the spleen, lungs, kidney three meridians, can nourish yin and replenish qi. It is especially suitable for our situation, it can moisten the lungs and relieve cough, but also can solidify the lean stomach, loose stool, excessive vaginal discharge, etc. can play a big role. Grandma Zhang felt more and more curious when she heard this, and Aunt Liu continued:"It is recorded in the "Materia Medica" that yam can fill the kidneys, strengthen the body and bones, and use yam water as a tea to make the ears and eyes clear. And, don't you see Dr. Zhang is busy all day? Yam is easy to make, and you can easily get it at home by yourself, which is both convenient and healthy. ”
When Xiao Zhang went home, he saw that his mother was preparing some yams, and he was still a little puzzled, so he asked, "Mom, how did you study yams today?" Grandma Zhang pursed her lips and smiled, "Aunt Liu told me that yam is especially good for people of our age. Come a little in spring to warm up your body and replenish your qi, which is not only delicious but also hot or cold, just suitable for the elderly. ”So Grandma Zhang began her yam nourishing journey. She learned several simple and practical yam recipes from Aunt Liu, such as boiling yam porridge is a good choice, just a few pieces of clean yam and some millet, boiled into porridge, which not only nourishes the spleen and stomach but also nourishes the lungs. Just in the spring, drink more porridge, which can warm the stomach and nourish it. Aunt Liu also suggested that she try the iron stick yam, saying that this yam has a high viscosity and is suitable for cooking porridge, stewed meat, and soup.
Of course, although yam is good, it is not a panacea. Aunt Liu reminded Grandma Zhang that while enjoying the health benefits brought by yams, she should also be careful not to mix them with certain foods to avoid adverse reactions. For example, eating yam with eggs may reduce the digestion and absorption of protein. In fact, yam and white fungus are not a pair of good brothers. Although they are all nourishing ingredients, if they are eaten at the same time, they may make the stomach feel cold, especially if the stomach is weak, especially if you have a weak stomach. As for coffee and pork liver, it is even more important to avoid eating them with yams. The caffeine in coffee may disrupt the calming effect of yam, while pork liver may affect the body's absorption of iron because of the oxalic acid in yam.
Seeing his mother so happy, Xiao Zhang also decided to take matters into his own hands and accompany his mother to cook yam delicacies to enhance the relationship between mother and son. "Mother, since the yam is so good, I will also accompany you to nourish it. Xiao Zhang prepared a leather knife and a cutting board and began their yam afternoon tea time. Since then, Grandma Zhang's mental state has improved significantly, her skin has become more moisturized, and she has more energy and relaxation even when walking. In the process, Xiao Zhang gradually understood that it is not difficult to maintain health, and in the process, he also enhanced his relationship with his mother.