Because tuna is a deep-sea fish, it doesn't carry parasites, so it can be eaten raw.

Tuna is most classically eaten raw. Tuna is a fish with red flesh, which is due to the large amount of myoglobin contained in the tuna's muscles. Tuna is a popular seafood with high economic value, and people often cut it into sashimi and eat it directly.

Tuna sashimi is the ultimate in sashimi. From the tuna species, sashimi quality from high to low are bluefin tuna, masu tuna, bigeye tuna and yellowfin tuna. Bluefin tuna and masu tuna have low production and very high prices, and common tuna fillets are made from bigeye tuna and yellowfin tuna.

Expanded Information:

Nutritional value:

Tuna meat is tender, rich in protein, fat, vitamins A, D and trace elements, especially DHA and EPA polyunsaturated fatty acids, methionine, taurine, minerals and vitamins, etc., which can help the function of the liver, and has a very good effect on the protection of the drinker.

EPA and DHA mainly inhibit platelet aggregation, reduce thrombosis, lower cholesterol, prevent cardiovascular and cerebrovascular diseases; anti-inflammatory, anti-cancer, and enhance autoimmunity; enhance the function of the nervous system, mental health, prevention of Alzheimer's disease and protection of eyesight and so on.

Tuna fish meat high protein, low fat, low calorie, regular consumption of tuna, can play a balanced nutrition and weight loss, tuna belongs to the red meat fish, rich in functional components such as taurine can inhibit sympathetic excitation, reduce blood pressure and blood cholesterol, to prevent atherosclerosis, promote insulin secretion, improve the liver's role in detoxification, prevention and improvement of visual impairment.

Baidu Encyclopedia - Tuna