[KongchangAI]
Unverified80% confidenceDecision RuleTime unknown

维生素B12纯素选甲钴胺(methylcobalamin)或腺苷钴胺形式生物利用率优于氰钴胺(cyanocobalamin),但氰钴胺更稳定廉价;长期补充剂量选1000-2000mcg隔日或每周形式即可

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