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维生素c对免疫系统的作用

Vitamin C's Immune Benefits

Let’s talk about the immune benefits of vitamin C now
今天让我们来谈谈维生素C对免疫的好处
vitamin C does a lot of different things
维生素C作用广泛
but its influence on your immune system
但它对你的免疫系统
is quite amazing
影响重大
let’s talk about it
一起来看看
now vitamin C deficiencies are actually very common
维生素C缺乏症其实很常见
you can have what’s called a subclinical vitamin C deficiency
不一定是严重缺乏 只要低到一定程度
where you’re not majorly deficient but you’re just deficient enough
你就可能患上潜在性维生素C缺乏症
to cause a weakness within the immune system
从而引起免疫系统机能下降
I’m going to talk more about that
我会再讲一些这方面的知识
vitamin C is a water-soluble nutrient
维生素C是一种水溶性营养素
so it has a low storage capacity
因此体内的储存量很低
so unless you’re constantly getting vitamin C
除非你持续补充维生素C
you can be deficient within weeks
不然几周内你可能就会缺乏
vitamin C is a very powerful antioxidant
维生素C是一种强有力的抗氧化剂
so when you have free radicals
所以你体内的自由基
which are basically molecules with unpaired electrons
也就是带有未配对电子的基本分子
so you’re supposed to have two to balance
即那些需要两个电子来达到平衡的分子
without let’s say you just have one and it becomes a free radical
不够的话 只有一个电子 就会留下一个自由基
so it can damage certain things in the body
自由基对人体有害
vitamin C comes in there
维生素C进入这里
and donates an electron to stabilize the molecule
提供一个电子使分子稳定
so it can actually help
因此它实际上是帮助机体
counter free radical damage
减少自由基的损害
all right as far as immune benefits it can enhance antibodies
就免疫特性而言 维生素C可以增强抗体活性
antibodies are proteins
抗体是一种蛋白质
that fight
它能够抵御
pathogens microbes that shouldn’t be in your body
机体内外源性的病原体和细菌
also it will increase neutrophil motility
还会增加中性粒细胞的活性
neutrophils are a type of white blood cell
中性粒细胞是白细胞的一种
it’s like a phagocyte that cleans things up
它负责清理的吞噬细胞
it engulfs and kills certain microbes
吞噬并杀死某些细菌
and it speeds up the motility of these little guys right here
并且能够加速中性粒细胞的活性
number three it enhances your B cells or B lymphocytes
第三 增强B细胞或B淋巴细胞的活性
it’s a type of white blood cell
B细胞也是白细胞的一种
which then increases antibodies
能够增强抗体活性
we’ve already mentioned that right here
我们之前在此提到过
number four it enhances the t-cells
第四 增强T细胞活性
another type of lymphocyte that helps you fight off infection
T细胞是另一种能够防止感染的淋巴细胞
number five it can increase interferon
第五 促进干扰素分泌
now interferon is a hormone
干扰素是一种
that kills infected cells
能够杀死被感染细胞
and their surrounding neighbors
及其周围细胞的激素
so it is a very powerful a new compound
它是我们身体产生的
that our bodies make
一种非常强大的新化合物
so you can see one big benefit of vitamin C
因此你可以发现维生素C的一大好处
is it helps fight infection
是有助于机体抵御外界感染
now when your deficient in vitamin C
如果你体内缺少维生素C
if you’re very deficient you have scurvy
当机体严重缺乏维生素C时就会导致坏血病
but I think there’s different levels of scurvy
坏血病严重程度不同
so there could be subclinical versions of this or major versions
可以分为潜在性坏血病或主要型坏血病
you’re not going to probably see a full-blown scurvy case
严重的坏血病病例不是很常见
but the point I want to bring up about vitamin C deficiencies
但重点在于 由维生素C缺乏
especially scurvy which is the
尤其是由缺乏大量维生素C
major vitamin C deficiency
而引起的坏血病
is that it makes you susceptible to certain infections
让你更容易感染疾病
with scurvy it has the ability to increase susceptibility to fatal infections
患坏血病还能增加对致命性传染病的易感性
like pneumonia scurvy is often followed by infectious epidemics
比如肺炎 传染病常常会引起坏血病
what does that mean?
这意味着什么呢?
it means that when you have an infection
这意味着一旦你受到感染
they can actually develop scurvy
就会演变成坏血病
why is that
为什么会这样呢?
because infections increase the need for vitamin C
因为感染病菌后 机体对维生素C的需求量增加
your white blood cells accumulate vitamin C
体内白细胞积攒维生素C
they need the vitamin C to function
因为它们需要维生素C才能正常工作
so if you’re using your immune system more
因此 如果免疫系统持续超负荷运行
you’re going to deplete your vitamin C reserves
耗尽了机体存储的维生素C
especially if you’re not putting it back
特别是机体不能自行补足
so this is another way that someone could be deficient
这是导致维生素C缺乏的另一种情况
number one they’re not consuming enough in their diet
第一 饮食中摄取不够
number two to get infection
第二 受到感染
it puts stress on the immune system
这会给免疫系统带来负担
and that’s another way that you can be deficient
也是另一种维生素缺乏的原因
minimally 200 milligrams per day
每天至少摄入200mg维生素C
a good source of vitamin C would be sauerkraut, leafy greens, bell peppers
德国泡菜 绿叶蔬菜 甜椒等都富含维生素C
any of the spicy hot peppers, jalapenos, red peppers
任何辛辣的辣椒 胡椒 红辣椒
are really high in vitamin C
维生素C含量都很高
now if you’re gonna take a supplement
如果要服用补充剂
make sure that you take a whole food base complex vitamin C
要保证服用的是天然膳食复合维生素C
not a synthetic
而不是人工合成的
the synthetic version of vitamin C is called ascorbic acid
合成的维生素C被称为抗坏血酸
and one of the ways they make it is they combine cornstarch and sulfuric acid
一种合成方法是将玉米淀粉和硫酸混合
so sometimes people tell you that
有时人们会觉得
the synthetic version is the same as a natural there’s no difference
合成的维生素C和天然的没区别
but I have a hard time believing that
但我很难相信
sulfuric acid and cornstarch is the same as something from actual food
硫酸和玉米淀粉和食物中的成分一样
and if you haven’t seen my other video on vitamin C
如果你还没看过我其它关于维生素C的视频
I put it up right here check it out
内容都在这里 去看看吧

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视频概述

维生素C能增强免疫系统功能,帮助抵抗外来病原体的感染。如果缺乏维生素C,不仅会使免疫系统功能下降,严重的话还会导致坏血症。日常饮食中,要多多注意维生素C的摄取。

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收集自网络

翻译译者

白日能否见星光

审核员

审核员 AF

视频来源

https://www.youtube.com/watch?v=ivYMo59SRRI

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