维生素D，它是当阳光晒到皮肤时生成的，所以叫做阳光维生素。
Vitamin D, the so-called sunshine vitamin because it’s made when sunlight gets your skin.
在生长完成后，维生素d3这种“阳光维生素”对于骨骼健康是非常重要的。
After growth is complete, vitamin D3, "the sunshine vitamin," may be more important to maintain healthy bones.
维生素D被称作阳光维生素，因为当我们在晒太阳的时候，机体产生了维生素D。
Vitamin D is also known as the sunshine vitamin because our bodies make it when exposed to sunlight.
尽管我们已谈到维生素D和阳光，但是如果你刻意去参加日晒沙龙来摄取阳光到皮肤的话，它会让你感觉到巨大的差别。
Although we talked about Vitamin D and sunlight, it can make a huge difference in how you feel if you go to a tanning salon to get some light on your skin.
你知道你的身体需要胆固醇来利用阳光合成维生素d吗？
Did you know that your body needs cholesterol to synthesize sunlight into vitamin d?
从粉色到棕色的变化不仅帮助防止了晒伤，而且还让合适数量的阳光穿透皮肤从而把未激活的前体变成维生素d3。
The variation from pink to brown not only helps to prevent sunburn but also allows appropriate amounts of sunlight to penetrate the skin to create the vitamin D3 from its inactive precursors.
阳光是获取维生素d的主要途径，此外，摄取一些营养补充剂如鳕雨鱼肝油也会有所帮助。
Sunlight is the primary way to get vitamin d, although taking certain nutritional supplements — like cod liver oil — can also help.
虽然我们对缺乏阳光和维生素D的地下生活还存在疑虑，但当时的人们设想通过空调和人工照明可以维持全年恒定的气候环境。
While we're skeptical of life without sunlight and Vitamin D, people back then anticipated year-round climates made possible by airconditioning and artifical light.
维生素d是在阳光照射下由皮肤合成的，或从摄入的一些食物中获得。
The vitamin is made by the skin during sun exposure, or ingested in a small number of foods.
尽管医疗队一直在给工人们输送膳食补充剂，他们还是很可能缺乏维生素D（人体一般通过阳光制造维生素D），时间一长可能导致骨头和肌肉的衰弱，但是两个月的时间似乎不足以造成长期损伤。
(Your body normally manufactures Vitamin D with the help of sunlight.) Prolonged deficiency can cause bone and muscle weakness, but two months probably isn't enough to do long-term damage.
尽管上文我们已将谈到维生素D和阳光，但是如果你刻意去参加日晒沙龙来摄取阳光到皮肤的话，那么会让你感觉到巨大的差别。
Even though we talked about Vitamin D and sunlight above, it still canmake a huge difference in how you feel if you go to a tanning salon to get somelight on your skin.
阳光是人体合成维生素D的最好方式，但曝露在阳光下同时也会增加皮肤癌风险。
Sunlight is the best source of vitamin D, but exposure to sunlight can also raise the risk of skin cancer.
在西雅图每个人都会服用维生素d，因为，我们不得不承认，在那里阳光实在是有些稀缺。
Here in Seattle everyone takes D supplements because, let's face it, where else are we going to get it?
论文的作者希望进一步研究并揭示所谓的太阳光促使维生素合成的生物理论。
The authors of the study agreed that the issue requires further study to shed light on the biological basis of the so-called sunshine vitamin.
最天然的获取维生素d的方式只有一个：阳光。
Nature gave us only one good source of vitamin d, and that is the sun.
我们想提醒在加拿大的加拿大人，秋季和冬季的阳光不够强烈，以至于不能产生足够的维生素d。
We want to remind Canadians that in Canada, the sun is not strong enough in the fall and winter to produce enough vitamin d.
阳光中的紫外线将皮肤中的一种物质转变成维生素d。
Ultraviolet light from the sun changes a substance in the skin into vitamin D.
可能的话获得一些阳光。不要过量，一点点阳光对你有好处。你的身体靠用阳光制造出维生素d。
Get some sun when you can. Not to excess, but a little sun is good for you. Your body USES it to make Vitamin d.
获得维生素d最简单的途径是从阳光中获得。
维生素D也是合成的皮肤暴露在阳光下。
Vitamin D is also synthesised by the skin when exposed to sunlight.
维生素D3可以通过饮食，额外补充及将皮肤暴露在阳光或者紫外线B（UV）下获得。
Vitamin D3 is available through diet, supplements and exposure of the skin to sunlight, or ultraviolet B (UV .
七个卫生组织建议，夏季，每周人们应该在没有防晒霜的状况下让阳光照射几次，每次15分钟，这样可以提高维生素d的含量。
Seven health organizations now recommend spending 15 minutes in summer sunshine without sunscreen several times a week in order to boost levels of Vitamin d.
研究发现在有更多阳光以及维生素D水平高的地区，MS的病例要比较少阳光的地区更少。
Research has shown in regions where there is more sunlight and vitamin D levels are higher, there are fewer cases of MS than in those with less sunlight.
维生素D的主要来源是通过阳光中的紫外辐射在皮肤中合成的。
The main source of vitamin D is exposure to ultra-violet radiation in sunlight, which produces vitamin D in the skin.
缺点：医生说，阳光是维生素d的最佳来源之一。维生素d对于骨骼健康非常重要。
The Ache: Doctors say one of the best sources of vitamin D, which is important for bone health, is sunlight.
从阳光中获取维生素d是最容易的方法。
适度接受阳光照射对人体是有益的并能帮助人体生成维生素d，可以有效帮助人体吸收食物中的钙物质。
The sun's rays, in moderation, are beneficial to the human body, which produces vitamin d, which is essential to help the body absorb calcium from food.
当皮肤色素沉着增多，所以需要暴露于阳光下紫外线B辐射的足够时间以合成足够数量的维生素d。
As skin pigmentation increases, so does the period of exposure to ultraviolet B radiation from sunlight needed to synthesise adequate amounts of vitamin d.
当皮肤色素沉着增多，所以需要暴露于阳光下紫外线B辐射的足够时间以合成足够数量的维生素d。
As skin pigmentation increases, so does the period of exposure to ultraviolet B radiation from sunlight needed to synthesise adequate amounts of vitamin d.
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