I heard of raw feeders doing this, never saw it canned until today. The lady at the health food store swore it was wonderful as a food additive. I bought a can--put a teaspoon on the dogs dry food tonight and I have never seen my dogs go wild for food before. My little one, Lily, was growling at her bowl as she was eating! I don't know how this stuff tastes (looks and smells very gross), but I had 3 happy dogs tonight. Their wasn't a molecule of food left in their bowls!