Unverified80% confidenceTradeoffTime unknown
B族维生素为水溶性，普通剂型服用后2-3小时血药浓度快速下降，缓释型(timed-release)可维持6-8小时更平稳，但缓释型吸收率略低且价格更高，日常保健普通型足够
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UnverifiedB族维生素属水溶性，普通剂型服用后1-2小时内血药浓度达峰随后经尿排出，缓释型（timed-release/sustained-release）可维持较平稳血浓度，适合每日一次服用者；普通型则建议随餐分次服用92% similarUnverified缓释型（time-release/sustained-release）维生素C分数小时缓慢释放，血药浓度更平稳、生物利用率利用更充分；普通片剂大剂量摄入时约有一半随尿排出，缓释型更适合需要长时间维持血药浓度的人群88% similarUnverifiedB族为水溶性维生素，普通剂型服用后1-2小时血药浓度骤升随尿排出(尿液变亮黄属正常)，选缓释技术(sustained release)可维持6-8小时稳定释放，减少浪费87% similarUnverified缓释型（time-release/sustained-release）维生素C通过延长释放时间维持血浆浓度6-8小时，比普通片剂的2-3小时利用率更高，适合每日只想服用一次的人群；普通剂型则更适合需要快速补充或分次服用者85% similarUnverified缓释型(time-release/sustained-release)B族更适合日常保健,B族为水溶性维生素,普通剂型易在数小时内快速排出,缓释技术可维持血药浓度更平稳,减少尿排损失84% similar
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