Made with Sardine and Mackerel – the only source of protein. Thrive Complete is cooked in a fish broth with added vitamins and minerals to give your cat a complete nutritionally balanced meal. Thrive Complete Sardine and Mackerel is complete therefore can be fed on its own or mixed in with our Thrive PremiumPlus dry food depending on your cats preference. This is real, sardine and mackerel, not ‘meat/animal derivatives.