When making Chinese yam and corn sparerib soup, due to the particularity of Chinese yam, it is necessary to pay attention to the fact that Chinese yam should be soaked in salt water immediately after slicing to prevent oxidation and blackening. When fresh yam is cut, the phytoalkaloids in the mucus are easy to cause itching and unbearable. If you accidentally stick it to your hands, you can wash it with water and a little vinegar first. Heat it to decompose, such as roasting it with fire or washing it with slightly hot water, and it will be all right after a while. Don't scratch, it tickles wherever you catch it. In addition, yam is delicate in texture and sweet in taste. However, yam skin is easy to cause skin allergies, so it is best to peel it, and don't touch your hands after peeling yam. Wash your hands several times immediately. If it itches, you can use edible oil to apply it to your hands to relieve it.

Yam is rich in amino acids needed by human body, which can effectively strengthen spleen and stomach, tonify lung and kidney, strengthen spleen and replenish blood, strengthen kidney and replenish essence, benefit heart and soothe the nerves, and also has the effect of quenching thirst and promoting fluid production, which has a certain auxiliary treatment effect on diabetes. Yam is also rich in vitamins, amino acids and minerals, which can prevent abnormal lipid metabolism and arteriosclerosis. Yam also has a certain maintenance effect on the normal function of insulin, but also can effectively enhance the body's immunity and delay aging. Yam is rich in trace elements of copper and calcium, which can effectively enhance physical fitness.

Corn is mild and sweet, and has the effects of stimulating appetite, invigorating spleen, removing dampness and diuresis. It is used for diarrhea, dyspepsia and edema in clinic. Because it is rich in sugar, protein, carotene, lutein, phosphorus, magnesium, potassium, zinc and other minerals, it is very beneficial to the conditioning of the body. Eat corn regularly, because it is rich in amino acids, which can promote the metabolism of brain cells and eliminate ammonia in tissues and brains, and has the effects of longevity and delaying aging. At the same time, the nutrients contained in the tip of corn germ can promote the metabolism of human body, adjust the function of nervous system, make skin tender and smooth, and delay the generation of wrinkles. At present, clinical research shows that the main components of lutein and zeaxanthin have a good control effect on the reduction of macular degeneration in the brain, and have the effects of improving eyesight and resisting eye aging. Clinically, it has a good effect on preventing and treating hypertension, eye diseases and coronary heart disease, and reducing body blood lipid and serum cholesterol.