Unverified87% confidenceTradeoffTime unknown

钙的形态影响吸收：碳酸钙含钙量高（40%）但需随餐服用且胃酸不足者吸收差；柠檬酸钙含钙量低（21%）但空腹可吸收、适合胃酸少的老年人和服用抑酸药者

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Unverified钙源形式影响吸收与耐受：碳酸钙含钙量高但需随餐服用且易胀气便秘，柠檬酸钙吸收率更稳定、可空腹服用，适合胃酸偏低的老年人94% similar Unverified钙源类型影响吸收与耐受：柠檬酸钙（citrate）不依赖胃酸、空腹亦可吸收，适合胃酸偏低者与老年人；碳酸钙（carbonate）含钙密度高、需随餐服用且易致腹胀便秘91% similar Unverified钙源类型影响吸收：柠檬酸钙不依赖胃酸，可空腹服用，适合胃酸偏低者及服用抑酸药人群；碳酸钙需随餐服用（依赖胃酸），单价低、钙密度高但易引起胀气便秘91% similar

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