Unverified85% confidenceFactTime unknown
血红素铁(Heme Iron,多来自动物血或肝提取)吸收率约15-35%且几乎不受食物抑制、肠胃刺激最小,但素食/纯素者不适用,且价格显著更高
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Unverified血红素铁(Heme Iron)吸收率约15-35%,是非血红素铁(硫酸亚铁等,吸收率2-10%)的3-5倍,且不受植酸、鞣酸等食物成分抑制,肠胃刺激小;选购时应确认成分表明确标注'血红素铁'或'卟啉铁/亚铁血红素',而非仅写'铁'或'焦磷酸铁'89% similarUnverified甘氨酸亚铁/血红素铁(如猪肝提取)吸收率高、胃肠刺激小但价格贵;硫酸亚铁便宜但便秘、恶心、黑便等副作用明显,胃肠敏感者宜选前者78% similarUnverified甘氨酸亚铁(有机螯合铁)吸收率高且胃肠刺激显著低于硫酸亚铁,孕妇、老人、胃肠敏感人群优先选择,代价是同等元素铁下价格更高78% similarUnverified补铁产品优先选择二价亚铁(如甘氨酸亚铁、富马酸亚铁、乳酸亚铁),其吸收率显著高于三价铁;其中甘氨酸亚铁(螯合铁)吸收率最高且对肠胃刺激最小,几乎不引起便秘和黑便77% similarUnverified无机铁(硫酸亚铁)吸收率虽被有机铁反超,但胃部反应大,权衡:预算敏感且胃肠正常可选无机铁;胃肠敏感或需长期服用则选甘氨酸亚铁/柠檬酸亚铁等有机铁76% similar
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