I use the Nutrition Tracker for more than just adding food items. Using manual entry (see below), I enter phrases to help clarify my eating for the day.
For example, I've added:
1. Slept through mealtime
2. Couldn't eat
3. Forgot to eat (and)
4. Didn't eat though knew I should
I put the phrase in the "Name Your New Food" space; enter 1 serving, and zeros for the calories & grams. I also add it to my Favorites list, so it's easy to find. Make up phrases to fit your own needs!
To enter your own "food" on the Nutrition Tracker (i.e. to do a manual entry), go to the Nutrition Tracker and click on "Add a Food." Then click on "Enter a Food Not Listed," which is on the top right side of that window.