Canned tuna is an important variety of canned aquatic products. The main varieties of canned tuna are albacore tuna and yellowfin tuna. There are many kinds of canned tuna, such as raw tuna, spiced tuna, oil-soaked tuna, vegetable tuna and tomato sauce tuna. In addition, because tuna muscle contains more sulfur and protein, tin cans which are both sulfur-resistant and acid-resistant are generally used as canning containers.
Nutritional value: Tuna is tender, low in fat and calories, and rich in high-quality protein, DHA, EPA, Omega-3 fatty acids, taurine, potassium and vitamin B 12. DHA plays an important role in brain function development and memory enhancement, while EPA can inhibit the increase of cholesterol and prevent arteriosclerosis, and also has a special role in preventing and treating cardiovascular and cerebrovascular diseases. Tuna enjoys the reputation of "underwater chicken", and international nutrition organizations also recommend tuna as one of the three major nutritious fish in the world.