Unverified80% confidenceDecision RuleTime unknown
有效的代谢促进类饮料需含绿茶提取物且EGCG（表没食子儿茶素没食子酸酯）含量≥100mg/份，单纯标注'绿茶风味'无剂量说明的多为营销概念
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80%
Confidence
Long-term
Relevance
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Unverified宣称'燃脂'的绿茶素饮品，有效EGCG单日需达300-400mg才具备文献支持的代谢促进效果，多数市售即饮茶饮EGCG含量不标注或＜50mg，实际效果有限89% similarUnverified选购时优先看EGCG标注含量而非总多酚或总儿茶素含量，EGCG是绿茶最主要活性成分，标注'绿茶提取物500mg'但不标EGCG含量的产品，实际EGCG可能仅50-100mg甚至更低86% similarUnverified绿茶提取物中EGCG含量通常占儿茶素的50-80%，优质标准化提取物EGCG可达45-50%，而普通提取物可能仅含10-20%儿茶素84% similarUnverified标注400mg绿茶提取物中EGCG约200mg，属于单粒中高含量，适合希望精确控制EGCG摄入量的用户83% similarUnverified所谓'燃脂'成分中，绿茶提取物（EGCG）需≥250mg/日、左旋肉碱需≥2g/日才有微弱代谢提升证据，且效果远小于饮食运动，单靠补剂减脂不现实83% similar
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