Was in the grocery today and spotted a new (to me) product, Swanson Seafood Flavor Boost (also available in chicken, beef and vegetable). These are smallish boxes that one is apparently supposed to add to dishes for increased flavor. Among the many dodgy ingredients in the seafood variety was an item labeled "fish milk." I had an immediate and nauseating mental image that I'm still trying to erase. Does anyone know what on earth this could possibly be?