[KongchangAI]
Unverified86% confidenceSolutionTime unknown

备孕/孕期营养补充的标准决策路径:①先评估是否高风险(生育史、慢性病、用药)→ 高风险走处方级高剂量;②普通人群做MTHFR基因检测(可选)→ 变异选活性甲基叶酸,正常选普通叶酸400μg;③根据是否需综合营养决定单独叶酸或孕妇复合维生素;④认准正规认证品牌

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