Unverified75% confidenceDecision RuleTime unknown
选购看每份成本×达标份数：宣称高含量但需每天3-4份才达标的产品，实际日服用成本远高于标称；应按'达到目标纤维量的每日成本'横向比较
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Unverified计算单日成本时应换算到'有效剂量单位'而非按包/粒数，部分低价产品需服用2-3倍剂量才达到有效量，实际单日成本反而更高；对比时统一按达到有效量所需的每日份数计算86% similarUnverified选购前算清每日成本与天数：用「有效成分总量÷单日需求量」核算实际可服用天数。标注90粒的产品若每天需3粒仅够1个月，低浓度产品单粒便宜但实际每日花费未必划算86% similarUnverified选购疗程成本核算应以'每日有效剂量单价'比较，而非单盒价格；部分低价产品每日需服3-4粒才达标，实际成本更高86% similarUnverified比较性价比应看'每份有效成分剂量÷价格'而非单纯每粒价格，需换算至每日总服用量（多粒装需乘以每日粒数）后对比83% similarUnverified菊粉每日有效剂量研究多在5-15g区间，购买时应换算单价至'每克膳食纤维成本'而非包装总价来对比，避免被大包装低纯度产品误导79% similar
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