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饮食与营养(视频+MP3+中英字幕) 第83期:传统饮食的智慧和科学(28)

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What they are eating, exactly, what are they eating

对,羊吃什么呢
They are eating these little tiny grasses that have to work really hard to grow
他们吃的是当地艰难生长的小草
and it turns out when vegetables have a lot adversity and to work really hard to make it above the earth
一般而言,当植物生长于逆境时
They're filled with things that are good for you
就会含有很多有益物质
and filled with something called alpha linolenic acid
会含有一种叫α-亚麻酸的物质
which I don't know if they talked about this the other day
我不知道,之前有人讲过没
It's actually the precursor to eicosapentaenoic acid which is the omega-3 fats in fish
它是十二碳五烯酸的前体,也就是鱼中的ω-3脂肪酸
We can pretty much do a decent job, most of us, unless some real genetic problem of converting that as can lambs to the omega-3 fats form
除了部分基因方面的东西以外,我们能同羊羔一样将这些植物转化为ω-3脂肪
So it turns out that that's where they are getting it
这就是来源
And if you look at the research and this is out of UC Davis
再看一项加大戴维斯分校的研究
冰岛极光

all of a sudden we traveled from Iceland to the Central Valley here

突然就从冰岛回到美国中央谷地了
And you look grain fed beef versus
这里对比了谷物饲养的牛
free range animals who're kind of equivalent to the Icelandic sheep, except maybe not getting as much as the Icelandic sheep
和放养动物,类似冰岛羊,只是可能没冰岛羊那么好
What do you see is the difference in their omega-3 fat levels between all these free range or wild animals and the corn fed confined beef
对比了两者肉中的ω-3脂肪水平,放养或野生动物和玉米饲养的圈养牛有什么不同
More omega-3s, yeah, any other observations
放养动物ω-3更多,还有呢
Oh, isn't that astounding? Isn't it?
哦,很惊人,不是吗
Yeah, it's so interesting. Yeah, and monounsaturated too. Yeah, it's really quite interesting
对,很有趣,放养动物单不饱和脂肪少很多
So, Yeah, the other fats sort of match up the same
其它脂肪都几乎相同
but those are the really interesting ones
这两点尤为不同

重点单词   查看全部解释    
precursor [pri:'kə:sə]

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n. 先驱者,前辈,前体

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range [reindʒ]

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n. 范围,行列,射程,山脉,一系列
v. 排

 
genetic [dʒi'netik]

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adj. 基因的,遗传的,起源的

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except [ik'sept]

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vt. 除,除外
prep. & conj.

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miller ['milə]

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n. 磨坊主,铣床(工)

 
equivalent [i'kwivələnt]

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adj. 等价的,相等的
n. 相等物

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astounding [əs'taundiŋ]

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adj. 令人惊骇的 动词astound的现在分词形式

 
confined [kən'faind]

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adj. 幽禁的;狭窄的;有限制的;在分娩中的 v. 限

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decent ['di:snt]

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adj. 体面的,正派的,得体的,相当好的

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adversity [əd'və:siti]

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n. 不幸,灾难

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