And vitamin D produces hormones that brighten your mood.

而维生素D会产生让你心情愉悦激素。

So maybe we don't get enough vitamin D?

所以我们可能没有得到足够维他命D？

It also makes vitamin D and substances that help digestion.

它还生产维他命D和 其他帮助消些物质。

Basically the more Vitamin D, the more an enzyme CYP3A4 is produced.

基本上，维生素D越多，产生CYP3A4酶就越多。

So with less vitamin D, cholesterol levels might rise.

因此，维生素D减少，胆固醇水平可能会上升。

Too much Vitamin D can cause heart problems, kidney damage and other medical conditions.

过量服维生素D会导致心脏问题、肾脏损害和其他疾病。

Active vitamin D then goes on to cause the gastrointestinal tract to increase calcium absorption.

活性维生素D继续作于消道，增加钙吸收。

But When they gave high vitamin D and normal vitamin A, they got hypervitaminosis D.

但是当给予火鸡大剂量维生素 D 和正常量维生素 A 时，他们则会出现维生素D过多症。

Furthermore, there is evidence to suggest that Vitamin D helps prevent cancer, heart disease and depression.

此外，有证据表明维生素D有助于预防癌症、心脏病和抑郁症。

Secondly, vitamin D must become metabolically active, and this process also has two steps.

其次，维生素D需有谢活性，这过程细分为两步。

Finally, there's also an increasing interest in the role of vitamin D as an effective treatment.

人们对于维生素D治疗效果也在持续观望中。

It's crucial for building cells and helps the body make vitamin D, along with testosterone and estrogen.

它对构建细胞至关重，并帮助身体制造维生素D，以及睾酮和雌激素。

Inadequate bone mineralization could be due to a deficient or impaired metabolism of vitamin D, phosphate or calcium.

骨矿不全可能由维生素D、磷酸盐或钙谢障碍引起。

So they benefited from vitamin D, developed strong bones, and survived well enough to produce healthy offspring.

得益于充足维生素D合成，他们骨骼更加强壮而且更有利于生存 抚育健康后。

Another study published in the journal Menopause found a link between more vitamin D and lower cholesterol levels.

发表在《更年期》杂志上另项研究发现，维生素D含量增加与胆固醇水平降低之间存在联系。

Sunlight supplies your body with a healthy amount of vitamin D, which makes you feel happy, inspired, and energetic.

阳光为身体提供健康数量维生素 D，让你感到快乐、振奋和精力充沛。

Although we get vitamin D from food like fish and eggs, we can also get it from the sun!

虽然我们可以从鱼类、蛋类等食物中获得维他命D，但是我们也能从阳光中获得维他命D。

Puttenham was a modest little village nine stories high, with silos, a poultry farm, and a small vitamin-D factory.

是个不起眼小村庄。九层楼，有圆柱形粮仓，有个家禽场和个小小维他命D工厂。

Persons who are on higher amounts of vitamin D or have higher amounts of vitamin D will have less anxiety and depression.

那些自摄入更多维生素D人或自身维生素D含量较高人焦虑和抑郁程度较低。

And vitamin D from sunshine can help your body to absorb certain minerals which are linked to building stronger bones.

阳光中维生素 D 可以帮助你身体吸收某些矿物质，这些矿物质与强健骨骼有关。