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Nutritional Difference Between Yam and Iron Stick Yam

There is not much difference in nutrition.

Ordinary yam and iron stick yam are both varieties of yam, both contain the same nutrients, such as protein, vitamins, amino acids, saponins, mucilage, choline, yam alkaloids, starch, polyphenol oxidase, iodine, iron, copper, zinc, manganese, calcium, etc., and more than the same food value, such as improving resistance, beauty, nourishing the kidney and essence, prolonging life.

2

Ordinary yam is nutritious

nutritious.

Many merchants publicize the common yam can only be used for cooking, nutritional value is not high, and the iron stick yam can be used in medicine, its nutritional value is high, but in fact this claim is not based on the nutritional composition, according to the point of view, 100 can be common yam contains the following nutrients:

Calorie (calorie) 56, potassium (mg) 213, phosphorus (mg) 34, magnesium (mg) ) 20, carotenoids (micrograms) 20, sodium (milligrams) 18.6, calcium (milligrams) 16, carbohydrates (grams) 12.4, vitamin C (milligrams) 5, vitamin A (micrograms) 3, protein (grams) 1.9, dietary fiber (grams) 0.8, selenium (micrograms) 0.55, iron (milligrams) 0.3, niacin (milligrams) 0.3, zinc (milligrams) 0.27, vitamin E (mg) 0.24, copper (mg) 0.24, fat (g) 0.2, manganese (mg) 0.12, vitamin B1 (mg) 0.05, vitamin B2 (mg) 0.02.

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How to differentiate between common yam and iron yam

From the epidermis can be distinguished: the surface of the iron yam is rough, there are more obvious pore bumps, and the hair whiskers are thick, the There are also purple spots on the surface, while the overall skin of the ordinary yam is considered smooth, pore bumps are not obvious, and the hair whiskers are more sparse, the distribution of the scattered.

Can also be distinguished from the shape, such as the iron stick yam is thin, roughly only 1-1.5 centimeters, length varies, head round tail pointed; and ordinary yam is thicker, roughly 4-5 centimeters, the shape is also irregular.

The texture of the iron stick yam is relatively more compact, delicate, fine fiber, it is very strong, not easy to break; and ordinary yam water, very watery, usually with the hand pinch can pinch out the water, easy to be broken, take to be very careful only.

The iron stick yam on the pot steamed or boiled, probably only minutes of time will be cooked, and the texture of the dry surface, sweet, and a long time to cook does not fall apart; and ordinary yam even if boiled for a longer period of time, but also brittle, and therefore often made into a refreshing dish.

Iron yams usually weigh around 200-400 grams in a single stick; thicker and heavier ones are common yams.

The iron stick yam will be broken, the section is white or slightly tooth yellow, less mucus, the meat is hard, powdery enough, delicate section; while the ordinary yam is easy to cut yellow and black, the meat is not delicate enough, there are like granular fibrous, and the powder is also not enough.

4

Yam eaten tongue numb why

Because the yam contains alkaloids and saponins to stimulate the tongue to produce the phenomenon of tongue numbness.

But these ingredients are not heat-resistant and can be eliminated after complete heating, but if the yam is not fully cooked, consumption may lead to numbness of the tongue, in addition to the skin of the yam alkaloids and saponins of the main depository parts, if you eat the yam is not carefully peeled, eat the skin of the yam can also cause numbness of the tongue.

But this situation generally do not need treatment, you can gargle more to reduce the symptoms, usually a few hours after the self-healing, but if a long time to feel the tongue numbness, may have nothing to do with the consumption of yam, you need to see a doctor as soon as possible to check, and in the doctor's advice on symptomatic treatment.