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看『蛋白质占比』而非绝对克数判断纯度：用每份蛋白质克数÷每份总克数，分离乳清应≥80%，浓缩乳清约70-80%，代餐型因加纤维/碳水通常仅30-50%属正常

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饱腹蛋白粉category

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Unverified看蛋白质纯度算法：每份蛋白克数÷每份总克数，优质分离乳清应≥80%，浓缩乳清约70-75%，低于65%说明填充物（如麦芽糊精）过多92% similar Unverified看蛋白纯度应计算「每份蛋白含量÷每份总重」，浓缩乳清约70-80%，分离乳清约85-90%，比值＜60%说明碳水/脂肪填充过多92% similar Unverified蛋白质来源标注顺序为分离乳清在前、浓缩乳清其次、水解乳清最少，实际蛋白纯度约79%，属于中上水平但不如纯分离乳清产品（通常90%+）高87% similar

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