I'm lactose intolerant, so if I drink milk, I'll be in agony for hours.

我有乳糖不耐症，所以如果我喝牛奶，我好几个小时。

It shows that humans were consuming dairy products as early as six thousand years ago, despite being lactose intolerant.

其表明人类早在6000年前就开始食用乳制品，尽管当时人们对乳糖不耐受。

Is it scary like lactose intolerance avoid the dairy?

像乳糖不耐症避免乳制品那样避免它吗？

Why not? -Because she's lactose intolerant. -Oh, I see.

为什么不呢？-因为她有乳糖不耐症。-哦，我明白了。

That's the enzyme that breaks down milk sugars for easy digestion.

乳糖酶可以分乳糖，让它容易被消化。

I'll also learn about my genetics related to muscle composition, lactose intolerance, and caffeine consumption.

我也了到关于肌肉组成、乳糖不耐受和咖啡因消耗基因。

Or... yeah. Or we have cereal with lactose free milk. Not proper milk. And... and...

或者… 是。或者我们吃不含乳糖牛奶麦片。不是正常牛奶。

Thank you. It's okay. Lactose intolerance is nothing to be embarrassed about.

谢谢。不客气，你不耐乳糖这没什么可害羞。

Such is the fate of the lactose intolerant.

这就是乳糖不耐症患者命运。

Others like Salmonella and Shigella can't ferment lactose, so their colonies will be colorless.

其他像是沙门氏和志贺氏都不能发酵乳糖，所以他们是无色。

Finally, there's the monosaccharide, galactose, known as milk sugar.

最后还有一种单糖叫半乳糖，常与乳糖相提并论。

Turns out Pilgrim Rick is lactose intolerant.

原来朝圣者瑞克有乳糖不耐症。

Why are you here? And don't say for the pizza, because I know you're lactose-intolerant.

你怎么在这？别说是来吃匹萨，我知道你有乳糖不耐症。

Building on that, I'd like to remind you, I'm lactose intolerant.

如你所说，我想提醒你，我有乳糖不耐症。

A relatively recent mutation, for instance, means adults with ancestors from northern Europe, or some parts of India and the Middle East, are more likely to be able to digest lactose (a sugar found in milk) than those from elsewhere.

例如，一个相对较新突变意味着，祖先来自北欧、印度和中东部分地区成年人比来自其他地方人更有可能消化乳糖(牛奶中发现一种糖)。

This is really important like if you're lactose intolerant and you can't digest cow's milk. it can make you feel really sick, aches, pains and digestive troubles, that kind of stuff.

这真很重要，比如如果你有乳糖不耐症并且无法消化牛奶，它让你感觉非常恶心、疼、还有一些消化问题，诸如此类。

If you wanna use a replacement without lactose, Green Valley actually makes a butter that is identical to butter and will melt and act the exact same way.

如果你想使用不含乳糖替代品，Green Valley 是不错黄油，它实际上与黄油相同，并且融化并以有一样作用。

In addition, it's thought that these galactose-deficient IgA1 antibodies are different enough from normal IgA1 antibodies that the body no longer recognizes them as self.

此外，这些缺乏乳糖IgA1分子，与正常IgA1分子不同，它们不再被识别为“自身”物质。

These are maltase, sucrase, and lactase, which break down the short chains of sugars called oligosaccharides into simple sugars, called monosaccharides.

它们包括麦芽糖酶、蔗糖酶与乳糖酶；它们能将称为寡糖短链聚合糖分成简单糖类，或称单糖。

But if that seems super speedy, the ability to digest lactose didn't spread through human populations until we domesticated cows, just 10,000 years ago.

但是如果这种变化看上去十分快速话，消化乳糖酶逐渐进化到人类各个种群中也还是发生在大概1万年前我们可以驯化乳牛之后。