Those are some really basic "non-answers" from the 3 companies. In no way should it be difficult to post nutritional facts along with product descriptions. If someone is putting up a product page they should have all of the merchandise information available right there. I don't see why there wouldn't be an image of the nutrition label as well as a description on the website. This is a good example of "if something is not required then they probably won't do it". Rite-Aid even has a nutrition information tab on its website that directs people to view the package they they cannot view online.

The FDA should require disclosure of this information any place that consumers are able to purchase a product. It shouldn't matter HOW the information is displayed as long as it is there. I have a feeling that this may have something to do with packages sometimes changing and companies avoiding lawsuits (also laziness). Of course, consumers should also avoid purchasing food if they do not have a nutritional label with ingredients.