缺乏叶酸是美国最常见的维生素缺乏症，但食素的妇女比食肉的平均叶酸食用量要多。
Deficiency is the most frequently encountered vitamin deficiency in the U.S., but vegetarian women consume more folic acid on average than meat-eaters.
缺乏叶酸是美国最常见的维生素缺乏症，但食素的妇女比食肉的平均叶酸食用量要多。
Deficiency is the most frequently encountered vitamin deficiency in the U.S., but vegetarian women consume more folic acid on average than meat-eaters.
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