Potato (scientific name: Solanum tuberosum? L), belonging to panicum miliaceum of Solanaceae, is the fourth most important food crop in the world, only next to wheat, rice and corn. Potatoes are also called eggs and potatoes? , potato, etc., tuber of Solanaceae. Together with wheat, rice, corn and sorghum, it has become the five major crops in the world.

Potatoes are native to the Andes in South America, and the history of artificial cultivation can be traced back to the southern part of Peru from about 8000 BC to 5000 BC. The main potato producing countries are China, Russian, Indian, Ukrainian and American. China is the country with the largest total potato production in the world.

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The specific nutritional value of potato is described as protein 1.6 ~ 2. 1 g, sugar 13.9 ~ 2 1.9 g, crude fiber 0.6 ~ 0.8 g and potassium/kloc. 0.82 mg of iron, 0.8 mg of carotene/kloc-,0.088 mg of thiamine, 0.026 mg of riboflavin, 0. 36 mg of niacin and 0.5.8 mg of ascorbic acid/kloc-. Potatoes are rich in nutrients, and their rich vitamin C (ascorbic acid) content far exceeds that of food crops.

Its high content of protein and sugar greatly exceeds that of ordinary vegetables. Potato has complete nutrition and reasonable structure, especially the molecular structure of protein is basically the same as that of human body, so it is easily absorbed and utilized by human body, and its absorption and utilization rate is almost as high as 100%. Some nutritionists have pointed out that "you can get all the nutrients you need by eating only potatoes and whole milk every meal", and it can be said that "potatoes are nutritious foods close to the full price."

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