The international foot measurements are based on the meter.

国际英尺的测量单位米。

It is the only thing in the entire universe with a mass of exactly one kilogram because it IS the kilogram. It is also the only SI unit that is still defined by a physical object.

这全宇宙中唯一一个质量为一公斤整的物质，因为它就“一公斤”。 公斤同时唯一一个用一个指定物质定义的国际主单位。

Scientists generally measure pressure with the S.I. unit of force: Newtons per area, meters squared, which is shortened to pascals.

科学家们通常用的国际计量单位 来测量压强: 牛顿平方米，简称帕斯卡。

Well the answer is grave. Or rather 'grave' as it would have been pronounced in the original French.

答案坟墓。其实原法语发音为'grave'。 （坟墓的英语单词grave），grave测量质量的国际主单位。

Making sure that we understand the system of units, international system of units, precision measurements.

确保我们理解单位制、国际单位制以及精密测量。

You can buy these little 5,000 IU vitamin Ds anywhere.

你可以在任何地方买到这些小瓶的5000国际单位的维生素D。

Compared with taking a placebo, study participants who took 2,000 international units or IUs of vitamin D3 daily significantly reduced telomere shortening over the course of the four-year study.

与服用安慰剂的对照组相比，研究中每日摄入2000国际单位（IU）维生素D3的参与者，在为期四年的研究期间显着减缓了端粒缩短的速度。

I think it's 250 IUs a week is 60% baseline, 500 IUs a week is 80% baseline, and 1,000 IUs a week will send a guy above baseline.

我认为， 每周250国际单位（IUs）能达到60%的基础水平，500 IUs则提升至80%， 而1000 IUs每周则能使数值超过基础水平。

For example, did you know that the International System of Units only includes seven base units and every other unit is derived from those units?

例如，你知道国际单位制只有七个基本单位， 而其他所有单位都从这些基本单位衍生出来的吗？

On a sunny summer day, a child wearing a bathing suit can generate 10,000 to 20,000 IUs of vitamin D in 15 to 30 minutes.

在一个阳光明媚的夏日，一个穿着泳装的孩子在15到30分钟内可以产生10000到20000国际单位的维生素D。

But in the official International System of Units, we use Joules.

但在正式的国际单位制中， 我们使用焦耳。

Neither even an America and written need the SI

甚至美国不需要书写国际单位制。

I make sure that I get enough D3, typically from the dropper, 5,000 IU per day, approximately.

我确保摄入足够的D3，通常通过滴管摄取，大约每天5000国际单位。

Meaning like, he's like, show me a study where everyone had a vitamin D of 30, they put someone on 10,000 IUs, they got them to 70 for 10 years, and then the diseases were better.

他的意思， 给我看看这样的研究， 所有人维生素D水平都30，然后给他们每天服用10000国际单位， 让他们在10年内维生素D水平达到70，然后看看疾病否有所改善。

If you eat dairy, in most countries, the dairy is fortified with vitamin D. Many people nowadays supplement with vitamin D, anywhere from 1,000 IUs to 5,000 IUs.

如果你食用乳制品， 在多数国家，这些乳制品都添加了维生素D。 如今，许多人补充维生素D，剂量从1000国际单位到5000国际单位不等。

So you could take 5,000 IU's every day, or you can take a 35,000 dose, you know, IU vitamin D capsule and that's it for the week.

所以你可以每天服用5000国际单位，或者你可以每周服用一次35000国际单位的维生素D胶囊。

SI units are the International System.

SI 单位国际单位制。

The University of California, San Diego hasn't seen vitamin D toxicity at 40,000 international units a day.

加州大学圣地亚哥分校表示，每天摄入40000国际单位的维生素D并不会导致维生素D中毒。

Again, just 2,000 IUs of vitamin D3 each day was found to be protective of our telomeres.

研究发现，每日仅需补充2000国际单位的维生素D3，就能有效保护我们的端粒。

Some of the actual clinical trials done using HCG for, say, fertility and things like that, people are looking at those and trying to go by that where they're using something like 5,000 or even 10,000 IUs a week.

在一些关于使用HCG进行生育等方面的实际临床试验中，人们参考这些研究，尝试采用每周5,000甚至10,000国际单位（IUs）的剂量。