Tunas are fast swimmers. They have been clocked at 70 km/h (45 mph). Unlike most fish species, which have white flesh, tuna have flesh that is pink to dark red. The red coloring comes from tuna muscle tissue's greater quantities of myoglobin, an oxygen-binding molecule. Some of the larger tuna species, such as the bluefin tuna, can raise their blood temperature above that of the water through muscular activity. This ability enables them to live in cooler waters and to survive in a wide range of ocean environments. Tuna species and fisheries have been overfished, and some stocks are at risk of collapse.
Canned tuna is a prominent component in many weight trainers' diets, as it is very high in protein and is easily prepared.Canned tuna can also be a good source of omega-3 fatty acids, of which it sometimes contains over 300 mg per serving.
Tuna-Flakes, shredded, Chunks, Sliced, Solid, Sandwish
Spread; Salad in Mayonnaise