First of all, let's start with the nutritional value of fish.
Since sea fish and freshwater fish are both fish, the nutritional composition of both sea fish and freshwater fish is generally the same, and their nutritional value is very high. First, because the fish meat is rich in protein, protein contains essential amino acid ratio and content are in line with human nutritional needs. Therefore, the use of fish is one of the main ways for human beings to consume protein. Secondly, because fish contains less fat, at the same time, it is mainly composed of unsaturated fatty acids, so the human body's absorption rate is very high, generally up to 95%, unsaturated fatty acids have the prevention of cardiovascular and cerebral vascular diseases and reduce cholesterol. First, because the fish meat nutritional value is very high, mainly including calcium, phosphorus, iron and other minerals, at the same time in the fish liver also contains a large number of vitamin D and vitamin A. Fourth, because of the water content in the fish meat is more, muscle fiber is shorter, so its meat is more tender, to be more than a lot of livestock and poultry meat is easier for the human body to absorb. Therefore, more use of fish helps human health.
A, sea fish nutrition and flavor
Sea fish and freshwater fish have a lot of the same places, but its flavor and nutrition are slightly better than freshwater fish. Specifically, the main reason is that the sea contains extremely rich nutrients, sea water and fresh water is the main difference between the salt content, the sea contains a large number of nutritive salt, sea fish live in the nutritive salt, which contains a higher content of vitamins and minerals In addition, the body oil and liver oil in the sea fish contains a high degree of unsaturated fatty acids, which fatty acids are land animals and plants do not have. This unsaturated fatty acid contains "brain gold", also known as DHA, which is an essential nutrient for the human brain and is important for the improvement of human thinking and memory. At the same time, marine fish also contains taurine and omega fatty acids, the content of which is much higher than that of freshwater fish, and these ingredients have a great protective effect on the brain and heart. Minnow is also a kind of sea fish, fish body shape is very round and long, this kind of fish is very rich in nutrients, on the long time sick people have a very silver fish on the rich calcium and much good body tonic effect. In addition, this trace elements, belonging to a very high nutritional value of the sea fish.
From the flavor, the taste of the sea fish is also fresh than the river fish. This is because the range of movement and the strength with which the sea fish swims is greater than that of river fish, making its muscles more elastic and flavorful. The main ways to cook marine fish are steaming, braising, boiling, deep-frying and stewing, etc. Boiling and baking can preserve the nutritional value of the fish and make the meat more tender. However, do not try to eat raw fish, which is due to the fish raw food easy to heterotrichous nematode infection, this situation is very
may lead to human allergies and abdominal pain phenomenon.
The nutrition and taste of freshwater fish
Hypophthalmichthys nobilis is the main species of freshwater fish, which contains a large number of anti-atherosclerotic n-3 series fatty acids and n-6 essential fatty acids in the muscle of the fish. Therefore, regular consumption of bighead and silver carp will be largely beneficial to human health, but also can effectively prevent atherosclerosis disease, but also can fully alleviate cardiovascular disease. Grass carp is also rich in nutritional value, and its main effects are dispelling wind, calming the liver and warming the stomach, which makes it a fish food that can be used to nourish health and replenish deficiency. The pangolin is also a freshwater fish
which has the ability to expel water and dampness, invigorate blood circulation, nourish the stomach, and strengthen the muscles and bones, which is beneficial to the human body after consumption. Bighead carp also has the effects of moisturizing the skin, warming the stomach, and benefiting the qi and temperature, and is also one of the foods that nourish the body and replenish the qi. Hypophthalmichthys nobilis is a kind of freshwater fish farmed in large quantities, which has the effects of benefiting the brain marrow, dispelling head wind, nourishing the blood and warming the stomach, as well as being effective in treating headaches, dizziness and blurred vision caused by wind or irregular menstruation or menstrual cramps. At the same time, the head of freshwater fish is rich in nutrients, especially bighead carp head has a lot of nutrients. Among them, it contains a large amount of unsaturated fatty acids, which are very good for the development of the human mind. Freshwater fish has a different flavor compared to sea fish. Generally, freshwater fish will have an "earthy flavor" when consumed, which is due to the fact that freshwater fish grows mainly in water environments with a lot of humus. Long-term growth in such an environment, easy to lead to the continuous reproduction and growth of actinomycetes, bacteria will continue to invade the freshwater fish through the gills in the blood, but also secrete a "fishy odor" of brown substances, this brown substance on the human body has a certain degree of harm.
This shows that sea fish and freshwater fish have different nutritional qualities, so it's important to buy them according to your own needs, and also to cook them properly.
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