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

活性维生素D继续作用于消化道，增加钙的吸收。

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

基本上，维生素D越多，产生的CYP3A4酶就越多。

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维生素 D 和正常量的维生素 A 时，们则会出现维生素D过多症。

So maybe we don't get enough vitamin D?

所以我们可能没有足够的维命D？

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

维命D同样也很重，因为它能让钙质被我们身体充分地吸收。

It also makes vitamin D and substances that help digestion.

它还生产维命D和 其助消化的一些物质。

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

过量服用维生素D会导致心脏问题、肾脏损害和其疾病。

And vitamin D produces hormones that brighten your mood.

而维生素D会产生让你心情愉悦的激素。

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

治疗一般包括口服补充维生素D和治疗潜在病因。

Besides, I get vitamin D from the sun.

此外，我还能从阳光中获取维生素D。

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

人需阳光才能在皮肤里合成维生素D。

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

提高维生素 D 水平相对容易。

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维生素D。

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，可以补充维生素 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.

益于充足维生素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。

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，并助身体制造维生素D，以及睾酮和雌激素。

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

事实上，维生素 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。

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

这种活性维生素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素D，后者有利于饮食中钙的吸收。