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維生素 C 不是萬靈丹：補充過量反而有害？

2025.09.14 12:16

kl196 조회 수:7

提到維生素 C，你會想到什麼？抗氧化、提升免疫力、美白淡斑，甚至有人認為它能預防感冒。維生素 C 確實是人體必需的營養素，但它並不是「萬靈丹」。事實上，過量補充維生素 C 反而可能帶來副作用。那麼，我們到底該怎麼正確看待這顆小小的維生素？

維生素 C 的角色

維生素 C（又稱抗壞血酸）屬於水溶性維生素，主要功能包括：

抗氧化：對抗自由基，延緩細胞老化。

促進膠原蛋白生成：有助於皮膚、血管、骨骼與牙齦健康。

增強免疫力：幫助白血球發揮作用。

促進鐵吸收：尤其是植物性食物中的非血基質鐵。

這些好處讓維生素 C 幾乎成為保健食品界的明星。

樂威壯Levifil 

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