Unverified85% confidenceDecision RuleTime unknown
补铁选择含维C的产品时,维C与铁的摩尔比达到2:1以上(约每18mg铁配100mg维C)才能显著提升非血红素铁的肠道吸收率,低于此比例强化维C意义有限
1
Sources
85%
Confidence
Long-term
Relevance
-
First Seen
Sources
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Unverified维C与铁剂同服可提升非血红素铁吸收率2-3倍,缺铁性贫血人群可选择将维C与铁补充剂搭配服用85% similarUnverified选购时优先看铁的形式:含焦磷酸铁或电解铁的吸收率低(10-15%),添加维生素C(≥30mg/100g)或乳铁蛋白可显著提升铁吸收率至20%以上,配料表应有VC与铁协同84% similarUnverified二价铁(亚铁Fe2+)吸收率高于三价铁(Fe3+),维C(约200mg)可将三价铁还原为二价铁提升吸收,因此含维C的配方对无机铁尤其有意义83% similarUnverified铁强化程度越高吸收利用需要的酸性环境和VC越多,单纯追求高铁含量而缺乏VC协同,实际吸收率可能不升反降;日常选铁含量适中(5-7mg/100g)+含VC配方,优于铁含量虚高的产品83% similarUnverified补铁与维C同服可将铁吸收率提升2-3倍(维C将三价铁还原为易吸收的二价铁),建议搭配果汁或维C制剂,但避免与牛奶、钙剂、茶多酚同服(抑制吸收)83% similar
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