Unverified50% confidenceCautionTime unknown
0-6月纯母乳或配方奶喂养的婴儿通常无需额外补钙，母乳/配方奶已提供每日约200-260mg钙且吸收率高，此阶段应优先补充维生素D3（400IU/天）来促进钙吸收而非补钙
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