【总结与翻译】

Vitamin D helps bones and muscles grow strong and healthy. Low levels of vitamin D can lead to problems such as rickets, a deformity mainly found in children. Osteoporosis, the thinning of bone, is a common problem as people, especially women, get older.

维生素D有助于骨骼和肌肉变得强壮和健康。维生素D含量低有可能导致一些诸如佝偻病（一种主要发生于儿童中的残缺疾病）和骨质疏松症（骨密度变稀，人们上了年纪后的一种常见疾病，尤其是妇女。）

But more and more research is suggesting that vitamin D might also help prevent many diseases.

但越来越多的研究提出，维生素D也可能有助于预防许多其它疾病。

The easiest way to get vitamin D is from sunlight. The sun's ultraviolet rays react with skin cells to produce vitamin D. But many people worry about getting skin cancer and skin damage from the sun. As a result they cover their skin or wear sunblock or stay out of the sun.

从阳光中获取维生素D是最容易的方法。阳光中的紫外线与皮肤细胞反应产生维生素D。但很多人都担心患上皮肤癌以及太阳对皮肤的损害。因此，他们就保护他们的皮肤，涂沫防晒霜，或呆在远离阳光的地方。

Also, darker skinned people produce less vitamin D than lighter skinned people. Production also decreases in older people and those living in northern areas that get less sunlight.

同样，皮肤较黑的人所产生的维生素D比那些皮肤较白的人少。年长的人们以及那些生活在获取阳光较少的北方地区的人们所产生的维生素D同样也较少。

Not many foods naturally contain vitamin D. Foods high in this vitamin include oily fish such as salmon, tuna and (mackerel), and fish liver oils.

不是很多食物都自然含有维生素D。维生素D含量高的食物包括诸如大麻哈鱼、金枪鱼和鲭鱼之类的油鱼以及鱼肝油。

Boston University researchers reported last year that farmed salmon had only about 1/4 as much vitamin D as wild salmon.

波士顿大学的研究人员报告称，人工养殖的大麻哈鱼维生素D含量只有野生大麻哈鱼含量的1/4。

posted on 2008-07-21 23:33 echo 阅读(15) 评论(0)  编辑  收藏 网摘收藏