vitamin A

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But although most people get enough calories, they still suffer huge deficiencies, especially in four nutrients: iron, zinc, iodine and vitamin A.
但是，尽管大多数人能获得足够的热量，他们仍然有很大的饮食不良，尤其是在四种营养素方面：铁，锌，碘和维生素A。
Helps detoxify. True vitamin A is found only in animal foods such as cod liver oil; fish and shellfish; and liver, butter and egg yolks from pasture-fed animals.
真正的维生素A只能在动物食品中找到，如鳕鱼甘油、鱼类和甲壳类动物、肝脏、牛油、草食性动物的蛋黄等。
What They Do - They contain antioxidants such as Vitamin A, beta-carotene, Vitamin C, Vitamin E, selenium, zinc, copper and manganese, which are also anti-stress nutrients.
作用 ——上述物质含有抗氧化剂，例如维生素A、胡萝卜素、维生素C、维生素E、硒、锌、铜和锰，同时它们也是具有抗压力的营养素。

Sweet potatoes, carrots and other darkly colored fruits and vegetables contain substances that the body can change into vitamin A.
How much Vitamin A should they have?
他们应该摄入多少维生素A
耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选
Now the fact that people were so reliant on certain foods led to deficiencies of certain nutrients, so people that were dependent on a rice based diet tended to have problems with deficiencies in protein, Vitamin A, and thiamine.
人们过于依赖某些特定的食物,导致了某些营养元素的匮乏,因此,以米饭为主食的人,很可能缺少蛋白质,维生素A和维生素B1
耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

They stayed alive on sweet potatoes, a rich source of calories, vitamin A and beta carotene.
FORBES: Millions Served

a vitamin found in foods such as butter, egg yolk, milk, and fish oils, or produced in the body from the carotene in green vegetables with a lot of leaves or in orange vegetables. It is important for normal growth, healthy skin, and the ability to see well, especially at night.

a vitamin that occurs in the tissues of freshwater fish and has a function similar to that of vitamin A. Formula: C20H28O A2 (Also called dehydroretinol)