Look at your personal needs, generally speaking, you can not remove the skin when steaming, so that when cooked, like sweet potatoes, peel the skin to eat, and after steaming, the skin of the iron stick yam is easier to remove, and with the skin to eat more nutritious, and the rest of the cooking and frying and frying and stewing, in the cooking of before, all need to be iron stick yam peeled.

If you do not remove the skin is also a good choice, the skin of the iron stick yam also has a large number of nutrients, which contains trace elements of copper, supplementation of copper, copper is the composition of the body of oxidative enzymes of the important ions, there are a lot of special must have physiological role.

Iron stick yam is characterized by fine, thin skin. Because of his unique taste and nutritional value caused by the price of iron stick yam is relatively more expensive, so the yam peeled is also a little pity.

Expanded Information:

Yam is a precious Chinese medicine, has been respected by generations of medical doctors, praised as a longevity factor, medicinal food and good medicine and cuisine. As a traditional Chinese medicine it can be made into a variety of pills, such as six flavors of dihuang pill for people to eat. As food vegetables, it is delicate and smooth, unique flavor, such as pulling yam, date mud yam, etc..

Yam contains saponin, mucilage, choline, yam alkaloids, starch, glycoprotein, free amino acids, polyphenol oxidase, vitamin C, iodine, 16 kinds of amino acids, and selenium, iron, copper, zinc, manganese, calcium and other trace elements.

Yam, eaten by humans since ancient times, is one of the earliest plants consumed by humans. As early as the Tang Dynasty poet Du Fu's poem, there is "filling the intestines more yam" famous line. Yam tubers are plump and juicy, sweet and creamy, and sticky, and are delicious when eaten raw or hot.

According to the Shandong Provincial Academy of Agricultural Sciences on the yam test results, the average tuber containing crude protein 14.48%, crude fiber 3.48%, starch 43.7%, sugar 1.14%, potassium 2.62%, phosphorus 0.2%, 0.2% calcium, magnesium 0.14%, ash 5.51%, iron 53.57 ppm, zinc 29.22 ppm, copper 10.58 ppm, manganese 5.38 ppm. Manganese 5.38ppm. 16 of the 18 amino acids needed by humans are contained in yams.

The meat of yam is tender and rich in nutrients. "Shennong Ben Cao Jing" said that "the main health of the deficiency, in addition to cold and heat evil, tonic in the benefit of qi, long muscle, long service ears and eyes smart"; "Rihua Zi Materia Medica" said that its "help the five viscera, living muscles and bones, long Zhi Anshen, the main cure for the leakage of sperm and forgetfulness"; "Compendium of Materia Medica," that the yam can be "benefit kidney qi, strengthen the spleen and stomach, stop diarrhea and dysentery, the paralysis of saliva, moist fur".

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