Here's why that could be happening:
If you have created and deleted a custom meal category, this can happen. Say you created a custom category of "PM Snack" and had food listed in that category. You then later go in and delete that meal category so it is no longer an option; but, the foods that you placed in your tracker under that heading wouldn't be associated with a meal category. That is when you will see those foods listed under the category of "Foods from customized meals you deleted". However, from time to time, there have been people who say they didn't do anything like that, but still get that odd category. If you get that category and didn't delete a custom category, then you can go to the nutrition tracker, click the add/edit meal category link, then save that page. It should then push the food back into the proper meal category on your tracker.
Hope that helps,
"You may have a fresh start any moment you choose, for this thing that we call "failure" is not the falling down but the staying down." Mary Pickford
"No matter how slow you go, you are still lapping everybody on the couch."