What constitutes "one serving" of food?

What constitutes "one serving" of food?

Susan Silberstein & Marilyn Joyce (Health and Nutrition Educator & Heath Counselor) gives expert video advice on: How was the food pyramid changed in 2005?; What information can be found on a "food label"? and more...

Most people think a serving is, for example, if they buy a package or, we'll go with spaghetti sauce. They get the can of spaghetti sauce and they think a serving is, you know, whatever they put on their pasta. In the meantime though, the servng may be double. Their serving may actually be double what the serving is on the can. So oftentimes people are getting two and three times the amount of whatever it is, pasta or spaghetti sauce or whatever the particular item is because they are not realizing that if they look at the package and it says serving size, it means how many servings are in that container not that half of that can necessarily is a serving but that there might be four servings in that can so you have to make sure you are only getting a quarter in that can. So it is really understanding what a serving is and only taking that amount. Unless you can afford to have more calories and more fat and whatever there is in that particular item that they are eating.