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世上所销售的各种维生素产品,大多数都是人工合成物,是在制药公司所拥有或控制的实验室里制造出来的。这些公司生产维生素的标准和程序,和他们制造处方药物或开架式药品一模一样。根据有机消费者协会调查,目前至少有百分之九十五的维生素产品含有些许合成成分。For more information reference钙软糖