Yam shape for the slender cylindrical, with earthy brown skin, and long with some miscellaneous beard, can be said to look amazing, but this model of the general yam has a full of spirit of the meat, it is white and tender meat, smooth texture crisp, but also contains a wealth of nutrients, the human body’s health is very beneficial. Nutritional evaluation Yam is rich in nutrients, in addition to a wider range of food value, there is also a rich medicinal value, has the spleen and kidney, nourish the lungs, stopping diarrhea, astringent sweating effect, since ancient times has been regarded as inexpensive to fill the deficiency of a good product. The main ingredient of yam is starch, part of which can be converted and decomposed into burnt essence, which can help digestion. Yam is rich in vitamins and contains no fat. Yam is also rich in fiber, as well as choline, mucus and other ingredients, can supply the body with a large number of mucus protein, this mucus protein can prevent the cardiovascular system of fat deposition, maintain the elasticity of blood vessels, to prevent atherosclerosis prematurely; at the same time, it can also reduce the accumulation of subcutaneous fat, to avoid the emergence of obesity; but also this mucus polysaccharide substances and inorganic salts combined, but also can be formed when the bone, so that cartilage Rich in a certain degree of elasticity, to help prevent fractures in old age. Healthy eating method People who intend to winter tonic: fall and winter tonic before eating some yam, more conducive to the absorption of tonic. Yam is a tonic drug, has the effect of tonifying the spleen and stomach, especially suitable for weak spleen and stomach before eating tonic. Yam, jujube 20 grams, rice (round-grained rice, glutinous rice half) boiled into a porridge, is a good choice. However, it should be noted that the starch content in yam is high, chest and abdominal distension, dry stools, constipation is best eaten sparingly. Diosgenin in yam can synthesize hormones such as testosterone and estrogen, so it is not suitable for male prostate cancer patients and female breast cancer patients.