English-Hanzi/What is vitamin C and what does it do?

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Vitamin C, also known as ascorbic acid, is a water-soluble nutrient found in some foods. In the body, it acts as an antioxidant, helping to protect cells from the damage caused by free radicals. Free radicals are compounds formed when our bodies convert the food we eat into energy. People are also exposed to free radicals in the environment from cigarette smoke, air pollution, and ultraviolet light from the sun.

维生素C，也称为抗坏血酸，是一些食物中发现的水溶性营养素. 在体内，它作为抗氧化剂，有助于保护细胞免受自由基造成的损害. 自由基是当我们的身体将我们吃的食物转化为能量时形成的化合物. 人们还暴露于环境中的自由基，如香烟烟雾，空气污染和来自太阳的紫外线.