Difference 1: the taste is different.
The meat of cod is white, thin, tender, thick, with few thorns, and the meat is sweet but not greasy. Oil fish is sweet and flat.
Difference 2: Different shapes.
Cod is long and slightly flat; The tail stalk protrudes. The head is bigger. The kiss is a little prominent. The eyes are small and lateral. The interval between the eyes is wide, flat and slightly convex. Big mouth, slightly lower. Lip thickness. There is 1 root chin whisker in the middle of mandible. The upper jaw is slightly longer than the lower jaw. The posterior end of the maxilla extends below the eyes. There are several rows of tiny fangs on both jaws and the front end of the plow. Branchial foramen is large. The gill cover is connected and separated from the isthmus, and the head and body are covered with small round scales. 1 side line, done.
Oil fish false lip fish is slightly longer, with a round front and a flat back. The body length is about 20 cm. The back of the head is curved.
Cod is as follows:
Oil fish are as follows:
Difference 3: The main functions are different.
Cod has a large liver and high oil content. In addition to all DHA and EPA of common fish oil, it is also rich in vitamins A, D, E and other essential vitamins. It is a high-quality raw material for extracting cod liver oil. The proportion of these nutrients in cod liver oil is the best proportion of the amount needed by human body every day.
In addition, cod meat is rich in magnesium, which is beneficial to prevent cardiovascular diseases such as hypertension and myocardial infarction, and has a good protective effect on the cardiovascular system. Therefore, cod is known as "gold in the sea" and "nutritionist at the table" in Europe.
Oil fish is mainly used for refining industrial lubricants-it contains a natural wax ester called snake mackerel toxin. Because the human body can't decompose and absorb it, eating it can easily cause stomach cramps, and oil accumulates in the rectum, leading to oily diarrhea.
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