Cat-man-Doo Sprinkles is a healthy food additive made of dried Bonito. Bonito is a schooling fish which hails from the Tuna family and provides an excellent source of protein. Can-Man-Doo is all natural and completely organic. Not just for cats, dogs love the crushed dried Bonito flakes too! Cat-Man-Doo is veterinarian recommended and is low in calories with zero fat.