Is tuna a marine fish?

Tuna has great utilization value and is a very common marine fish. Especially in developed countries in Europe and the United States, tuna is very popular. Tuna is very good for women. It can beautify and nourish the skin, and can also help with weight loss.

1. Tuna is considered a deep-sea fish

Tuna live in waters 100-400 meters deep. Juvenile bigeye tuna, yellowfin tuna and skipjack tuna all live in the surface waters of the ocean, generally not exceeding 50 meters in depth, while adult bigeye tuna and yellowfin tuna live in deeper waters, with bigeye tuna living in deeper waters than yellowfin tuna.

Tuna swims very fast and can travel thousands of kilometers and cross oceans. It is known as "fish without borders." According to scientists, tuna is the only large fish that can swim quickly over long distances. Experiments show that tuna can swim up to 230 kilometers a day.

The body of tuna is spindle-shaped, which reduces the resistance of tuna swimming. The average speed is 30-50 kilometers per hour, and the maximum speed can reach 160 kilometers per hour, which is faster than the fastest animal on land.

2. The benefits of tuna

1. Tuna is a healthy food for women to beautify and lose weight

Tuna meat is low in fat, low in calories, and contains high-quality protein and other nutrients. Eating tuna can not only maintain a slim figure, but also balance the nutrients needed by the body. It is an ideal choice for modern women to lose weight easily.

2. Can protect the liver and strengthen liver function

The incidence of a series of liver diseases caused by the intense pace of life, huge work pressure and excessive fatigue among modern people is increasing.

3. Prevent arteriosclerosis

Arteriosclerosis is a life-threatening disease for the middle-aged and elderly. Eating tuna can lower blood lipids, unclog blood vessels, and effectively prevent arteriosclerosis.

4. Effectively reduce cholesterol levels

EPA, protein and taurine in tuna are all effective in lowering cholesterol. Regular consumption can effectively reduce malignant cholesterol in the blood and increase benign cholesterol, thereby preventing diseases caused by high cholesterol levels.

5. It can activate brain cells and promote brain activities

Tuna oil is a high-quality brain health product. Tuna is rich in DHA, which is an unsaturated fatty acid that humans cannot produce on their own. It is one of the nutrients necessary for normal brain activity. DHA can enter the brain through the blood-brain barrier and increase and extend the synapses of brain nerve cells, thereby increasing brain capacity, enhancing memory and comprehension. Regular consumption is beneficial to the regeneration of brain cells, improving memory and preventing Alzheimer's disease. In addition, DHA can soften the retina, improve retinal reflection function, enhance vision, and prevent myopia, while EPA can promote the function of DHA in the body.