Just a warning to read labels EVERY SINGLE TIME. Ingredients can change without notice.
Dole Pineapple is now listing CITRIC ACID on their label delphi post here See Amazon listing including ingredients
Panderos Delights cookies have also changed their ingredients recently to include ASCORBIC ACID.
No confirmation from either company that the new ingredients are corn derived, but as both citric acid and ascorbic acid are commonly derived from corn (or otherwise contaminated, causing symptoms in corn allergic individuals) please use caution. And remember, ingredients really do change in the blink of an eye, so always read labels when shopping.
Edited to add that recent contact with Panderos Delites indicates their ascorbic acid is derived from tapioca. Still, an important reminder.