1, the yam is not ripe.
Yam contains a lot of alkaloids and saponins, which will give people a numbness when eaten. These ingredients can be eliminated after sufficient heating, but if the yam is not completely cooked, it may cause numbness of the tongue.
Step 2 eat yam skin
Yam peel is the main part of alkaloids and saponins in yam. If the yam is peeled carelessly, there is still some skin on the tuber meat. Chewing this kind of skin can also cause numbness in the mouth, but it won't die very strongly. Rinse your mouth several times with clear water to get rid of that strange feeling.
3. Wrong cooking method
The best cooking method of yam is soup, which can ensure that yam is completely cooked and can also dissolve alkaloids and saponins in yam to the greatest extent. Many people eat yam by steaming it, but many ingredients in yam will not be dissolved by water in this way, which will make the numbness substances dissolve in yam meat, and the mouth will feel numb when eating.
4. disgust
Saponins, plant alkaloids and mucin contained in yam are allergens, and people with allergic constitution may have allergies after eating them. When it is not serious, numbness of the mouth and tongue often occurs.
5. What should I do if my tongue is numb after eating yam?
1. Rinse with clear water: The substances in yam that make people numb in mouth and tongue are soluble in water. Therefore, when you feel numb, rinse with clear water and repeat it several times to remove the abnormal feeling.
2. Vitamin supplementation: Vitamin C food has a good adjuvant therapeutic effect on yam allergy. If the tongue is numb because of slight allergy, eating some foods with high vitamin C content can alleviate the symptoms, such as oranges, tomatoes, grapefruit and plums.
6, the efficacy of yam
1, nourishing and fitness, delaying aging
Studies at home and abroad have confirmed that yam can promote the brain to secrete dehydroepiandrosterone. Taking dehydroepiandrosterone can improve sleep, make people feel happy, energetic, look young and have a good appetite. To achieve the effect of strengthening the body and delaying aging.
Yam has the functions of nourishing cells, strengthening endocrine, nourishing and strengthening human hematopoietic function, inducing interferon, improving human immune function and improving disease resistance. It plays an important role in delaying aging.
Yam is rich in trace elements beneficial to human body, and has the functions of enriching blood, strengthening brain, tonifying kidney and resisting aging.
2, slimming beauty, skin care and beauty
As a nutritious food, Chinese yam contains a lot of starch, protein, B vitamins, vitamin C, vitamin E, glucose, crude protein amino acids, choline, allantoin and so on. Among them, yam soap, an important nutritional component, is the precursor of synthesizing female hormones, which has the functions of nourishing yin, strengthening yang and enhancing metabolism. Dopamine in yam can dilate blood vessels and improve blood circulation. Improve human digestive function, enhance physical fitness, and improve skin's moisturizing feeling and color.
3, filling essence and strengthening kidney, enhancing sexual function
Yam can tonify qi and yin of lung, spleen, kidney and triple energizer, replenish essence and strengthen kidney, stop nocturnal emission, and make qi and blood biochemical active. It is an important drug for deficiency of both qi and yin and deficiency of lower energizer, and has a good curative effect on kidney deficiency, wet dream, nocturnal emission, premature ejaculation and impotence. It has a good curative effect on sexual dysfunction caused by kidney deficiency in middle-aged and elderly people.
4, filling essence and strengthening kidney, treating frequent urination.
When people get old, frequent urination is very common, especially at night, which is mainly caused by the instability of kidney qi and the decline of kidney yang in the elderly. Severe frequent urination brings great pain to the elderly and affects their life and health. Regular consumption of yam can nourish yin and strengthen kidney, and has a significant effect on the treatment of frequent urination. Frequent urination has a great relationship with urinary retention. I always feel that my urine is not clean. I only pee once, and then I want to pee. Yam not only can replenish essence and strengthen kidney, but also has diuretic effect, which can effectively overcome the symptoms of urinary retention, thus achieving the effect of treating frequent urination.
5. astringe the intestine to stop diarrhea
Yam is sweet, nourishing but not greasy, fragrant but not dry, and has a good effect on diarrhea due to spleen deficiency. Yam is a soothing, nourishing and strong medicine, which can strengthen the spleen, benefit the stomach and widen the intestine, and has a good effect on chronic diarrhea with gastrointestinal dysfunction.
Yam can nourish yin, promote diuresis, lubricate and converge. It can be used for the treatment of fecal diarrhea, because it is beneficial to urination and convenient, so that water can be discharged from the bladder and the moisture in the intestine is reduced, so the symptoms of diarrhea are alleviated.
Yam can strengthen the spleen and stomach, relax the intestines and stop diarrhea, because yam can calm the spleen and strengthen the function of invigorating qi and transporting spleen, so it can stop diarrhea.
6. Treating coronary heart disease complicated with arteriosclerosis
Chinese yam is one of the ideal foods for preventing and treating arteriosclerosis and coronary heart disease for the following reasons:
(1), yam can supply a lot of mucin to human body. This is a mixture of polysaccharide and protein, which has special health care function for human body, and can prevent fat deposition in cardiovascular system and avoid obesity.
(2) Amylase contained in yam can be decomposed into protein and sugar, which is an important substance to maintain human life, and can lose weight, improve intelligence and strengthen the body. The sitosterol contained in yam has the function of lowering blood cholesterol, and has certain curative effect on preventing and treating coronary heart disease and hypercholesterolemia.
3. Yam is rich in cellulose, which can lower cholesterol. Dietary fiber can shorten the time for food to pass through the small intestine, thus reducing the absorption of cholesterol, which is conducive to the conversion of cholesterol into cholic acid and bile acid to be excreted, avoiding the increase of blood cholesterol content and reducing the chance of excess cholesterol and fat being deposited on the blood vessel wall.
④ Yam contains more than 20 kinds of nutrients, such as mucus, amylase, amino acids, trace elements and vitamins, which have the functions of resisting arteriosclerosis and improving blood supply to myocardium.
⑤ Dopamine, an important component of yam, has the function of dilating blood vessels and improving blood circulation, and plays an important role in treating circulatory failure.
⑥. Dioscorea opposita has the functions of regulating endocrine, benefiting qi and dredging pulse, improving coronary artery and microcirculation blood flow, and treating coronary heart disease and angina pectoris.
7, intelligence and brain.
Yam is rich in nutrients, including starch, protein, mucus and other nutrients, especially amylase, which can hydrolyze starch into glucose, directly provide heat energy for the brain and play an important role in strengthening the brain.
Yam is rich in choline and lecithin, which helps to improve the memory of human brain. Yam is rich in nutrition, and has the functions of enhancing the activity of nerve cells, nourishing the heart and calming the nerves, treating amnesia, nourishing the heart and improving intelligence, and enhancing memory.