1, DHA (Chinese name docosahexaenoic acid, commonly known as brain gold) is a kind of unsaturated fatty acid which is very important to human body, and belongs to an important member of ω-3 unsaturated fatty acid family. DHA is a major component of the growth and maintenance of cells in the nervous system, and it is also an important component of the brain and retina. The content of DHA in the human cerebral cortex is as high as 20%, accounting for the largest proportion in the retina of the eyes, accounting for about 50%. Therefore, it is very important for the intelligence and vision development of the fetus. Fish oil is rich in DHA, and the higher up the food chain, the more DHA there is. DHA can also be commercially extracted from microalgae and Schizochytrium.

2. EicosapentaenoicAcid (EPA) is one of several ω-3 fatty acids commonly used in human body. Compared with the daily diet of our ancestors, the omega-3 fatty acids contained in the current daily diet are relatively insufficient. In our daily diet, the main source of omega-3 fatty acids is cold-water fish (such as wild salmon). Fish oil supplements can also improve the concentration of EPA in the body. Increasing EPA absorption has been proved to be effective in treating coronary heart disease, hypertension and inflammation (such as rheumatoid arthritis).

Extended data:

The earliest report about DHA originated from an epidemiological survey by Dyerberg J. The incidence of coronary heart disease, myocardial infarction, thrombosis and other diseases is very low after Eskimos ingest a large amount of marine lipids, which is related to their long-term consumption of marine fish and other marine animals, and the population contains a large amount of n-3 polyunsaturated fatty acids (also known as ω-3 polyunsaturated fatty acids).

Deep-sea fish oil and algae are the main sources of DHA, but the DHA extracted from fish oil has high cholesterol content, fishy smell and high pollution rate, which greatly affects the quality of products. Microalgae DHA oil just overcomes these weaknesses of fish oil, and has the advantages of fast growth rate, short culture period, high nutritional value, high biological accumulation and small occupation area.

Baidu encyclopedia -DHA

Baidu Encyclopedia-Eicosapentaenoic Acid