Here are some facts about sweet potatoes you probably don't know:
这里有一些关于红薯你可能还不知道的事实:
Sweet Potatoes Originated in the Americas
红薯起源于美洲
They're in the family of plants that includes morning glories and are in a different family than yams. Yams are from Africa and are more closely related to lilies.
红薯和牵牛花是同一科的植物,但和山药不属于同一科。山药源于非洲,和百合花关系更近。
A 5000 Year-Old Food
红薯有5000年的历史
When Christopher Columbus arrived in the Americas in the 15th century, sweet potatoes were already a staple crop. He took some with him back to Spain and by the 16th century, gardens all over Europe were growing them.
15世纪哥伦布到达美洲,那时红薯已是当地的主要作物了。他带了一些回西班牙,到了16世纪整个欧洲的花园都种植红薯。
A Rich Source of Beta-Carotene
红薯富含β-胡萝卜素
This powerful antioxidant gives the tuber its yellow, gold, or orange (and sometimes even purple) coloring and coverts to vitamin A in your dog's body. It's thought to reduce the risk of certain types of cancer and provide protection against heart disease.
强大的抗氧化剂使得这种块茎呈黄色、金色、或橙色(有时甚至呈紫色),并在你的体内转化成维生素A。有降低患某些癌症风险的功效,并预防心脏病。
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