Briefly, JJ1 events have a Modifier/Type setting which essentially determines what happens when they're destroyed or passed over. Item is one option (counted on the item tally at the end of the level), health is another. The closest you could come to having a single event do both would be to put two events on different tiles and shift one's sprite over into the next tile, but the animations wouldn't sync up perfectly. And there are no smaller health intervals than carrots.