My dear Kali (who passed away this last August) used to attack the jar of Petroleum Jelly! She loved it so much that i would give it to her as a treat before bedtime. In fact, I think it is good for their digestive systems - if you catch my drift She never had a problem with eating it, mind you she never had it in large portions. Kali would sit there for what seemed like hours licking her chomps - it was so funny! I suppose it's sort of like feeding your dog bread with peanut butter