Fish in some areas will be polluted by heavy metals such as mercury and lead or harmful substances such as arsenic, so the safety is low. Moreover, the content of EPA (eicosapentaenoic acid) in fish oil is too high, which can make the proportion of DHA too low, which is quite different from breast milk and does not meet the physiological requirements.
There are two kinds of DHA products in the market: one is extracted from deep-sea fish oil, and the other is extracted from algae. Compared with extracting from fish oil, algae has outstanding advantages. Extracted from cultured marine microalgae, it is a relatively pure and safe source of DHA without food chain transmission.
Extended data:
The safest food with the richest DHA content is breast milk. For infants and young children, healthy breast milk can meet the DHA intake demand without additional supplementation. However, the content of DHA in breast milk depends on the mother's food structure. The study found that Japanese mothers have the highest DHA content in their milk because they eat more fish.
In addition to rich DHA in breast milk, many foods also contain DHA, which can be taken by children from natural foods. For example, fish with high DHA content include cod, salmon, sardines, saury, hairtail, etc. Nuts such as walnuts, almonds, peanuts, sesame seeds, and algae all contain DHA or substances that can be converted into DHA in the human body, so they can be eaten selectively.
People's Daily Online-The more -DHA, the better. Excessive intake or decreased immunity.