Unverified82% confidenceTradeoffTime unknown
剂量与耐受性权衡：单份剂量越高（8-10g）补充效率越高，但突然大剂量摄入不可溶纤维易导致腹胀、腹痛、排气，肠胃敏感者宜选可分次的小份包装从低剂量适应
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Unverified剂量越大越有效但耐受性越差：临床有效量常需10-20g/日，而高剂量易引发胀气腹泻，实际应从小剂量爬坡而非一步到位追求足量85% similarUnverified剂量越高胃肠刺激（反酸、恶心）风险越大，尤其空腹服用600mg级；分次服用或餐前30分钟服用可兼顾吸收与耐受，但吸收率随剂量提高呈非线性下降82% similarUnverified剂量与吸收权衡：单次超过10g谷氨酰胺吸收率下降且可能引起肠胃不适，大剂量需求应分2-3次而非一次服完82% similarUnverified高剂量（600mg）吸收更充分但更易引发低血糖和胃部不适；剂量越高越需分次服用而非单次，权衡在于'单次疗效峰值'与'胃肠耐受及血糖波动风险'81% similarUnverified剂量越高软胶囊体积越大，15mg以上产品胶囊往往偏大且油脂含量高，吞咽困难人群及肠胃敏感者宜选5-10mg小规格分次服用81% similar
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