Unverified85% confidenceDecision RuleTime unknown
普通片剂维C单次吸收上限约200-250mg,超过部分吸收率骤降,选1000mg高剂量不如分次服用两片250mg或选缓释型
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85%
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Long-term
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Unverified剂量越高单粒吸收利用率反而递减,单次200mg以上一次性摄入吸收饱和明显,分次服用(如早晚各100mg)总吸收量优于单次300mg88% similarUnverified剂量越高单粒成分越足但吸收有上限,单次超过200mg吸收率边际递减,300mg产品更适合分次服用而非一次吞服88% similarUnverified剂量越大吸收效率越低:单次100-200mg吸收率约80-90%,单次1000mg吸收率降至约50%,1500mg以上降至约30%。追求补充效率应分次小剂量,而非单次大剂量87% similarUnverified剂量越高吸收率越低:单次200mg时吸收率接近100%,而1000mg单次摄入吸收率降至约50%以下,因此分次小剂量补充比一次性大剂量更有效87% similarUnverified剂量越高吸收利用率占比反而越低(单次吸收有上限约200mg),高剂量300mg分两次服用比一次性吞服利用率更高,盲目追求高毫克数不等于高实际吸收87% similar
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