Asian Carp can weigh up to 45 kilograms each, and eat up to half their body weight in food per day.
VOA: standard.2010.07.20
The minerals are present in small amounts in food and as a function of body weight as well.
矿物质,在食物中所占比例非常小,在体重中所占比例也非常小
Nutrients get broken down into several classes and these are the constituents of food that your body uses for one purpose or another.
营养素这个问题需要花几节课来讨论,它们是食物的组成要素,供给身体吸收,支持身体机能运转
Typically, we're distracted from thinking about them by the distractions provided by the body-- the desire for food, drink, sex, what have you, sleep.
通常我们对这些东西的思考,被身体的一些需求打乱了,比如对食物,饮料,性,睡眠的欲望
Any molecule can be an antigen; the food that you eat is full of antigens, microbes that try to live in your body are full of antigens.
任何分子都可以成为抗原,你吃的食物中富含抗原,试图栖息在你身体中的微生物充满抗原
If the food environment had evolved very slowly, as it had in earlier human history, the body would have a chance to adapt.
如果食品环境演化很缓慢,像它在人类早期历史时那样,机体就有机会去适应这样的食品环境
Calories go in, food gets consumed, the body metabolizes or makes use of those particular nutrients.
热量摄入,食物消耗,机体新陈代谢,即利用那些营养物质
Okay, so the body has a way of metabolizing and making use of the food such that you can get energy or nutrients from it.
对的,身体可以代谢并利用食品,从中获取能量和营养
Some of them have to do with merely digesting food and moving the body around, and making the heart beat,and the lungs open and close.
有一些只负责消化食物或者身体活动,让心脏跳动,让肺部呼吸。
Why does your body experience one food as highly pleasant, highly reinforcing, highly comforting, highly soothing even, and experience those other foods as bitter and unpleasant?
为何身体能从一种食物中获得高度愉悦感,感到极度满足,舒适,甚至感到安抚,但却觉得其他食物难以下咽呢
But of course food has this cascade of effects once it enters our body.
当然,一旦食物进入我们的身体,就会产生联动效应
So it's the amount of energy, usable energy for the body that a food provides.
所以卡路里是能量的总额,食物所提供的被人体吸收的能量
Your body interprets liquid calories different than it does calories in solid food.
你身体以不同的态度,对待饮料和固体食品中的卡路里
The body's able to digest food.
能够消化食物。
There is a researcher at The Harvard Medical School named David Ludwig who's done a terrific series of studies on the glycemic index and found how it relates to food intake, body weight regulation, and health.
在哈佛医学院有一个研究员,名叫大卫·路德维格,他在血糖指数方面,做了一系列出色的研究,并发现了血糖指数与食物摄取,体重控制以及健康之间的关系
We sense food coming in, that sets into gear a series of metabolic and biological processes that are very interesting, and then of course once the food gets in the body it does lots of interesting things-- some good things and some bad things.
美食当前,食指大动,身体从而启动一系列新陈代谢过程,和有趣的生物过程,而且,当食物进入身体,它就产生许多有趣的效应,这些效应有好有坏
If we defined food differently: that it's something that nurtures the body, something found in nature, something that doesn't harm the environment-- there are a number of criteria one can apply to define a food-- then we might come up with a different definition than this, but this is the way the nutrition field generally looks at it.
如果我们给出不同的定义,滋养身体的物质,在自然界找到的物质,不会威胁到身体的物质,有很多标准可以拿出来定义食物,我们也许可以就此重新进行定义,但这就是营养学看待食物的方式
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