And vitamin D produces hormones that brighten your mood.

而生D产生让你心情愉悦的激。

So maybe we don't get enough vitamin D?

所以我们可能没有得到足够的D？

Or you can simply take a daily Vitamin D supplement.

也可以每天服用生 D 剂。

It also makes vitamin D and substances that help digestion.

它还生产D和 其帮助消化的一些物质。

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

基本上，生D越多，产生的CYP3A4酶就越多。

So with less vitamin D, cholesterol levels might rise.

因此，生D减少，胆固醇水平可能上升。

Both conditions result in an active vitamin D deficiency, which leads to impaired bone mineralization.

这些疾病均导致活性生D缺乏，引起骨矿化障碍。

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

活性生D继续作用于消化道，增加钙的吸收。

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

D同样也很重要，因为它能让钙质被我们身体分地吸收。

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

过量服用生D导致心脏问题、肾脏损害和其疾病。

The treatment typically involves oral vitamin D supplementation and treating the underlying cause.

治疗一般包括口服生D和治疗潜在病因。

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

但造成这种差异的不仅仅是阳光和生D。

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的生 D 和正常量的生 A 时，们则出现生D过多症。

In addition, preventive measures include vitamin D supplementation during pregnancy, and administering vitamin D drops to neonates and infants.

此外，预防措施包括孕期生D，给新生儿和婴儿生D。

It's relatively easy to increase your Vitamin D level.

提高生 D 水平相对容易。

Humans need some sunlight for the synthesis of vitamin D which takes place in the skin.

人需要阳光才能在皮肤里合成生D。

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

人们对于生D的治疗效果也在持续观望中。

It's good for your skin to have a little sun for vitamin D, for your spirit.

晒晒太阳对你的皮肤有好处，可以生 D，对你的精神也有好处。

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

得益于足生D的合成，们的骨骼更加强壮而且更有利于生存 抚育健康后代。

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

事实上，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。