缺乏維他命A的症狀是什麼?
皮膚乾燥
乾眼症
夜盲症
不孕
成長緩慢
反覆呼吸道感染
痊癒困難
要怎麼補充維他命A?
動物性維他命A(retinol)是身體馬上可以使用的形式,植物性維他命A(carotenoids)還要轉換才能變成身體可以使用的形式,有時還不能轉換。所以如果缺乏維他命A應多攝取含高量維他命A的動物食材。
哪些食材有動物性的維他命A?
肝臟
蛋黃
牛奶、母奶
起司
奶油
哪些食材有植物性的維他命A?
芒果
木瓜
紅蘿蔔
地瓜
紅莧菜
維他命A保健品
因為用不完的維他命A是儲存在動物肝臟裡的,所以魚肝油裡有豐富的維他命A。但由於它的劑量比較高,只適合在身體發炎時吃。不建議持續天天吃,過量的維他命A能造成維他命A中毒。
單獨攝取維他命A保健品,最好從油脂類膠囊攝取,因為它是脂溶性維他命。
魚油裡加上適量維他命A是很好的選擇,因為它溶於油中,劑量也不似魚肝油的維他命A那麼高,因此可以比較頻繁的使用。
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