Wild salmon have parasites. Therefore, eating sashimi will lead to the risk of parasitic diseases, and Japan is a country with high incidence of parasitic diseases in developed countries. However, in real life, we don't eat pure wild salmon directly.

Eating salmon after freezing at low temperature can kill parasites. Usually it can be frozen at a low temperature of about MINUS 30 degrees Celsius for about 24 hours, which is enough to kill parasites. Also, farmed salmon are generally treated with deinsectization, so there are generally no parasites (but there may be antibiotic residues).

Extended data

Health-preserving efficacy of salmon

1, rich in protein.

Salmon, like other fish, is also rich in protein and higher than other fish, so eating more salmon can maintain the balance of potassium and sodium; Eliminate edema.

Because it is rich in high protein, it can also improve immunity. Because protein is rich, it helps to protect the elasticity of blood vessels, so it can lower blood pressure. Hemoglobin is also a kind of protein, so it can buffer anemia and is beneficial to growth and development.

2. Rich in copper.

Copper is an indispensable mineral for human health, which is related to the color of our hair. Without copper, juvenile gray hair will appear. Copper has an important influence on the development and function of blood, central nervous system and immune system, skin and bone tissue, brain, liver, heart and other internal organs.

Lack of copper can also lead to anemia, so salmon supplementation is one of the better ways to ingest copper.

3. Prevent stroke.

Because salmon can live in the deep sea, there is an unsaturated fatty acid in its blood, which can remove excessive saturated fatty acid in blood, reduce blood lipid, strengthen blood circulation, reduce the damage of lipid toxins to blood vessel wall and maintain the elasticity of blood vessel wall, so it can effectively prevent stroke.

4. Other functions.

Because salmon contains DHA, it is called the protector of the brain, so it has the function of enhancing brain function and preventing Alzheimer's disease, and can be used for adjuvant treatment and prevention of Parkinson's disease, stroke, vision loss and other diseases. Salmon can also effectively prevent diabetes.

References:

Nutritional value of Baidu Encyclopedia salmon