They have had too many tomatoes when their poop reminds you or tomato paste. (I get produce from the grocery store that is no longer good for sale), and sometime last winter when my 12 girls were still only a couple/three months old, I got a box of cherry tomatoes that wouldn't last so they got the whole thing. Next day the run looked like someone had flung spoonfuls of tomato paste willy nilly. Only other too much was when they stomped in a box of strawberries eating them. They had red feet until the next rain. So glad for the produce, makes giving the girls treats much easier, and better than scratch all the time