视频文本

You may decide to take a vitamin supplement to ensure
你可以服用维生素补养品来
you consume adequate amounts of vitamin. There are
保证摄取足量的维生素
many options on the market, and it can be very
由于目前市场上这类产品多种多样
confusing which are better. In general, supplements
因此选择哪一种产品变得十分困难
that contain most of the required vitamins are better
通常富含多种维生素的保养品比只含一种
and safer than taking single vitamin preparations.
维生素的保养品更加安全和有效
Most of these will also contain minerals.
这些补养品中大多还含有矿物质
There are some very good products available now that
现在还有一些专门针对某个年龄层和
target specific age and gender. These are recommended
性别的产品，它们十分值得推荐
because requirements are different between men and
因为不用性别，不同年龄层的人们
women and across the lifespan. In general, you should
对维生素的需求是不同的
avoid supplements that contain greater than 200% of
但要注意，对于任何一种营养物质
the Daily Value for any of the nutrients.
每天的摄入量不要超过最佳摄入量的200%
This could lead to toxicity or imbalance in the body.
因为这会导致体内营养物质中毒或者不平衡
Some manufacturers try to market unique sources
一些制造商不断宣传
or blends of vitamin supplements. Words like "organic"
合成或者新型维生素制品，但对于维生素
or "natural" are meaningless when it comes to vitamins
"合成"和"自然"等词根本没有意义
The body cannot distinguish among these sources,
身体根本无法区分它们的来源
and we use the vitamins equally well. In general,
同样都能吸收，通常情况下
using vitamin supplements manufactured by a
最好选择信誉好的制药公司
well-established pharmaceutical companies is the
生产的维生素产品
best choice. It may not be necessary to take the
我们并不需要每天服用这些产品
supplement every single day. Skipping a day or two
中间错过一两天也无所谓
is fine. And this can save you money on supplements
这样既可以省钱又可以
and still ensure meeting the body's needs.
保证身体每天的需求量
Water-soluble vitamins. In summary,
这就是水溶性维生素，总的来说
the water-soluble vitamins include the
水溶性维生素包括维生素B族
B-complex Vitamins which are Vitamin B12,
也就是维生素B12 维生素B6
Vitamin B6, Folate, and Vitamin C.
叶酸以及维生素C
These vitamins are necessary for many different
这些维生素对我们的很多身体机能都有好处
functions within your body. Since these vitamins
因为它们是水溶性的
are water-soluble and are excreted instead of stored,
可以不断更新而不是储存在体内
you must get these vitamins in your day, you must get
因此你每天都要有一定的摄入量
these vitamins in your diet each day. Aim to get your
每天的饮食中都要摄入
vitamins by eating a variety of different foods,
要使你的饮食多样化，以便获得
but if you are unable to meet your vitamin needs
所需的维生素量
through food alone, a multivitamin can help
同时，富含多种维生素的
bridge the gap to meeting your needs.
补养品也有助于你每天摄取足够的维生素

视频及简介

视频简介：

本课程的目标是，向公众提供最新的有关营养方面的信息和话题，内容涵盖饮食因素对于癌症的影响作用，健康的饮食习惯，学校能提供的营养有哪些，咖啡因与癌症的联系，水果蔬菜与癌症预防等。通过本课程的学习，人们可以学习到健康的生活饮食习惯，在每天的饮食中防癌症于未然