(来源：www.EnglishCN.com)

Vitamin(维生素/维他命)是英文“Vital（至关重要的）” 和“amines（胺化合物）”的合成词。

维生素是对我们健康至关重要的化合物。他们首先被认为是氨基酸，即蛋白质的组成成分。今天，我们知道，有13种维生素对人体健康是必不可少的。通常你可以通过均衡的饮食得到你所需要的所有维生素。但有些人，尤其是那些限制饮食的人，可能会受益于维生素的额外补充。那你需要补充多少呢？政府已经建立了大多数维生素和矿物质的建议补充量以及安全上限的指标，我们可以参考。

The word vitamin comes from “Vital” and “amines”

Vitamins are compounds that are vital to our health. They were first thought to be amino acids, the building blocks of protein. Today, we know that 13 vitamins are essential to human health. You can usually get all you need by eating a well-balanced diet. But some people, especially those on restrictive diets, may benefit from vitamin supplements. How much do you need? The government has established recommended daily allowances for most vitamins and minerals, as well as upper limits that are safe.