Tunais a species of fish that has a round, spindle-shaped body. The body color of the back of this fish is a dark blue to black, the sides and belly are silver with elliptical spots stretched in horizontal rows. The maximum length of this fish is 130 cm.
This fish swims at high speed and its speed reaches 70 kilometers per hour. Unlike other types of white meat, tuna has dark pink or red meat. The cause of redness in the meat of this species is the high level of myoglobin (protein-containing red iron in muscle) in muscle tissues. The flesh of this fish is firm and has many proteins and vitamins.
tuna is mostly found in the Persian Gulf and the Sea of Oman, the Indian Ocean, the East Sea, and southern China. They feed on a variety of fish, cattle, and crustaceans, especially end-mouth larvae and shrimp, and its distribution in the world is mostly in ocean waters and waters with a depth of more than 10 meters.
Properties:
1-Contains high levels of omega-3 fatty acids that promote cardiovascular health.
2-It contains many minerals and vitamins that lead to strong bones and improve brain function in children and the elderly.
3-High levels of selenium in this fish reduce the risk of cancer.
4-The amount of thorns and thistles of this fish is low and not annoying.
5-Consumption of this fish is also highly recommended for those who have a vegetarian diet and are less exposed to sunlight.
6-The presence of selenium, magnesium, vitamins D, K, A and E in this fish has made it a useful diet for the elderly, kidney patients and those who suffer from vitamin A and D deficiency.