是否有助于支持健康的黄斑色素密度？
试验证明，每天补充50毫克叶黄素，可以在140天左右让黄斑色素密度快速达到相对平衡水平。
It was proved by the experiments that to supplement 50mg lutein per day for approximately 140 days can make the density of macular pigment quickly reach the relatively balanced level.
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