Tuna fish can food Genova Yellowfin Tuna in Olive Oil is a good choice for lunch or dinner. This yellowfin tuna fish is stored in olive oil for added flavor and richness. It is wild caught and contains no added preservatives. Each filet of this solid light yellowfin tuna in olive oil is hand-selected for ideal quality. This yellowfin tuna also contains no trans fat. It is packaged in a 5 oz can with a peel-back lid for easy opening.