Because tuna is a deep-sea fish that does not carry parasites, it can be eaten raw. Tuna is eaten raw in the most classic way. Tuna is a red meat fish, which is caused by the high amount of myoglobin in its muscle. Tuna is a very popular seafood with high economic value. People often cut it into sashimi and eat it directly. Tuna sashimi is the ultimate in sashimi. From the species of tuna, the quality of sashimi is bluefin tuna, mahi-mahi tuna, bigeye tuna, and yellowfin tuna in order from high to low.

Bluefin and masu tuna are low in production and very high in price. Common tuna flakes are made from bigeye tuna and yellowfin tuna. Tuna can be cooked and eaten. The fish itself contains the eight amino acids needed by the human body, and cooked fish is even more nutritious than raw fish, but people currently prefer raw fish. It tastes especially sweet and delicious when cooked, which is also related to the fact that it is a deep-sea fish that has been active in the depths of the sea, and its meat is tasty and pollution-free. When cooked, it is high in protein but low in fat, which is a diet food that everyone needs, so tuna can be cooked and eaten.

Tuna can be eaten raw, the most classic way to eat raw. Tuna is a red meat fish, which is caused by the high amount of myoglobin in its muscle. Tuna is a very popular seafood with high economic value. People often cut it into sashimi and eat it directly. Delicious fresh tuna has been one of the most popular seafood dishes in Japan and Taiwan, especially among tuna sashimi. Tuna meat is tender, rich in protein, fat, vitamins A and D and trace elements, especially DHA, EPA and other polyunsaturated fatty acids, and is rich in methionine, taurine, minerals and vitamins to help liver function and protect the drinker.

EPA and DHA can inhibit platelet aggregation, reduce thrombosis, lower cholesterol and prevent cardiovascular and cerebrovascular diseases. Anti-inflammatory, anti-cancer, enhance autoimmunity; enhance the function of the nervous system, improve intelligence and brain, prevent Alzheimer's disease and protect eyesight. Tuna is high in protein, low in fat and low in calories. Eating tuna regularly can balance nutrition and reduce weight. Tuna belongs to the red meat fish, rich in taurine and other functional components, can inhibit sympathetic excitation, reduce blood pressure and blood cholesterol, prevent atherosclerosis, promote insulin secretion, improve liver detoxification ability, prevent and improve visual impairment.