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视频简介：
食物营养标签是什么？哪些食物应该贴有该标签？美国食药局规定大多数预加工食品，如各种面包，谷类食品，灌装及冷冻食品小吃，点心，饮料等都需要提供食品标签。然而未加工产品如蔬菜水果鱼等则不必附有营养标签。营养标签的不同部分：食用分量，热量，两部分营养物质，补充说明和每日摄入百分比。本讲提供了一些对这些部分的简要说明。如何理解营养标签的这六个部分呢？食物分量、热量、营养成分，补充说明每日摄入百分比。
v. 消耗，花费，挥霍
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- First when reading any food label you should start by noticing the serving size given.
- 阅读食物标签时我们首先注意到的是提供的食用分量
- There are two different parts in this section
- 它包含两个不同的部分
- the serving size and then the number of servings per container.
- 食用分量和使用分量的数量
- The serving sizes are usually listed in standard measurements such as cups pieces tablespoons etcetera.
- 食用分量通常以标准尺度列出如杯，块，匙等等
- The serving size allows you to compare similar food products to each other.
- 食用分量可以使你比较相似的产品
- After noticing the serving size you should also look to
- 关注完食用分量你还应该关注
- see how many serving sizes are within the container
- 每包产品含有多少个食用分量
- this information is listed just below the serving size.
- 这一项就列在食用分量之下
- If you consume the whole package of food
- 如果食用了整包食品
- you will have to multiply the number of servings per container by all the information listed on the box.
- 那就得把整包食品的食用分量数乘以标签上的所有数据
- Using this macaroni and cheese food label as an example.
- 以通心粉奶酪的食物标签为例
- The serving size is one cup.
- 其食用分量是一杯
- Below this it reads servings per container two.
- 下面是每盒含有两小包
- This means if you were to eat the whole box of macaroni and cheese
- 也就是说如果你吃了一整盒通心粉奶酪
- you would eat a total of two cups of macaroni and cheese.
- 相当于吃掉了两杯通心粉奶酪
- Also if you eat the whole box
- 同理，如果你吃掉了一盒，
- you would then need to multiply the rest of the numbers on the food label
- 你需要将食品标签上的其他数据
- by the number two as well as to figure your calories consumed and the total nutrients consumed.
- 乘以2来获知自己食入的总热量和所有营养物质
- Moving on, the next section of the food label is calories.
- 继续看食物标签的下一部分是热量
- Calories also have two pieces of information listed on the food label.
- 它也有两栏信息列在食物标签上
- Calories per serving tell you the amount of energy in each serving.
- 每份热量告诉你每份食品中含的热量
- Located just to the right of calories per serving a food label will list calories from fat.
- 位于其右侧的是来自脂肪的热量
- Both of these are important in order to figure the total amount of calories you consume,
- 这两个数据都很重要，要计算自己食用的热量总量
- you must multiply the calories per serving by the number of servings that you have consumed.
- 你得将每份含有热量与食用的份数相乘
- Calories from fat tells the consumer how many of the total calories consumed are coming from fat.
- 来自脂肪的热量告知消费者摄入的总热量中来自脂肪的部分
- This information will allow you to
- 这部分信息可以使你
- compare the calories from fat to the number of calories in each serving.
- 比较来自脂肪的热量与每份含有的热量
- This number can be calculated by dividing the number of calories from fat by the number of calories per serving.
- 这一数据可以用脂肪提供的热量与每份含有的热量之比来表示
- As you can see here listed just below the serving size is information about calories.
- 现在你在这里看到的食用分量之下的就是热量信息
- On the left it shows the calories per serving are 250 and on the right it shows calories from fat 110.
- 左侧显示每份含有热量为250卡，右侧显示脂肪提供110卡热量
- This means that there are 110 calories per serving coming from fat
- 这就是说每袋脂肪提供110卡热量
- as compared to the total amount of calories per serving being 250.
- 而每袋总热量是250卡
- To calculate the percentage of calories from fat you can divide 110 by 250 which equals 44%.
- 要算出每袋脂肪提供热量比例，就用110除以250得到44%
- So if you are eating one serving of macaroni and cheese you would consume a total of 250 calories,
- 因此，如果你吃了一袋通心粉奶酪，就摄入了250卡热量
- 110 of those calories are coming from fat which means that 44% of your total calories consumed are from fat.
- 其中的110卡来自脂肪，也就是说摄入总热量的44%来自脂肪
- If you eat the whole box of macaroni and cheese
- 如果你吃掉了整盒通心粉奶酪
- you would consume a total of 500 calories which is 250 multiplied by 2 servings and this would be 220 calories coming from fat.
- 就共摄入了500卡热量，由250乘以2获得，其中220卡来自脂肪
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