Why do you think the FDA requires some products to have an "As Prepared" label?

Answer:

The main reason for including this label is so consumers can be informed when making dietary decisions. For example, a "Hamburger Helper"-type box meal may say it only has 400 calories per serving as packaged. However, once a person gets around to adding all the additional ingredients that didn't come in the box, it may double or even triple the amount of calories per serving.