Unverified80% confidenceTradeoffTime unknown
锌补充剂长期服用会竞争性抑制铜和铁吸收,日常补锌不宜超过婴幼儿UL(1-3岁约7mg/日),且不建议锌铁同服,需间隔2小时
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80%
Confidence
Long-term
Relevance
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Unverified长期锌摄入超过上限(1-3岁UL为7mg/日)会干扰铜和铁的吸收,导致贫血或免疫功能下降,非确诊缺锌不建议常规大剂量补锌89% similarUnverified补锌见效周期短(1-2周)而补钙铁需持续数月,缺锌婴儿表现为食欲差、反复口腔溃疡、生长缓慢;锌剂量以元素锌计,1岁以内3mg/天、1-3岁4mg/天,长期过量补锌会导致铜缺乏88% similarUnverified补锌不宜长期大剂量:过量锌会干扰铜和铁的吸收,导致继发性缺铜贫血;儿童日常无明确缺锌症状(食欲差、生长迟缓、反复感染)不建议常规补锌87% similarUnverified确认缺锌前不建议自行长期大剂量补锌,因过量锌会竞争性抑制铜和铁的吸收,导致继发性铜/铁缺乏和贫血。补锌与补铁/补钙尽量错开2小时以上服用86% similarUnverified哺乳期补锌需注意上限:成人锌可耐受最高摄入量约40mg/日,长期过量锌会干扰铜吸收导致铜缺乏,选复合剂看是否含铜平衡配方86% similar
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