And vitamin D produces hormones that brighten your mood.

而维生D会产生让你心情愉悦。

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 其他帮助消化一些物质。

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

基本上，维生D越多，产生CYP3A4酶就越多。

So with less vitamin D, cholesterol levels might rise.

此，维生D减少，胆固醇水平可能会上升。

Vitamin D is also important because it helps calcium work well in our bodies.

维他命D同样也很重要，为它能让钙质被我们身体充分地吸收。

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

其次，维生D需要有代谢活性，这一过程细分为两步。

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

活性维生D继续作用于消化道，增加钙吸收。

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

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

But it's not just sunlight and Vitamin D that makes the difference.

但造成这种差异不仅仅和维生D。

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

人们对于维生D治疗效果也在持续观望中。

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

得益于充足维生D合成，他们骨骼更加强壮而且更有利于生存 抚育健康后代。

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要，并帮助身体制造维生D，以及睾酮和雌。

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

骨矿化不全可能由维生D、磷酸盐或钙代谢障碍引起。

In fact, vitamin D promotes heart, metabolic, and immune system health in addition to supporting bone health.

事实上，维生 D 除了有益骨骼健康外，还对心脏、新陈代谢和免疫系统健康有益。

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

发表在《更年期》杂志上另一项研究发现，维生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.

为身体提供健康数量维生 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，但我们也能从中获得维他命D。

This activated Vitamin D works to absorb calcium from your food, ultimately leading to bone growth and strength.

这种活性维生D可以从食物中吸收钙，影响骨骼生长和骨强度。

Normally, the kidney helps to activate vitamin D which helps to increase absorption of calcium from the diet.

正常情况下钙辅助活化维生D，后者有利于饮食中钙吸收。