Dha is usually eaten by pregnant women when they are pregnant with their babies. The curve of brain development shows that the baby's brain development increases by 175% when he is 12 months, and only increases by 18% after18 months. In other words, the baby's brain development speed at 0~ 12 months is much faster than that after 18 months. If we can seize this golden period of brain development, supplement adequate nutrition and give appropriate early education, we can get twice the result with half the effort. It is worth noting that not all nutrition and early education for babies at any time can achieve the same effect on brain development.
In addition, the intake of dha is not as high as possible. Dha, as a nutrient that plays an important role in the growth and development of infants and the maintenance of normal human health, needs reasonable intake just like other nutrients, that is, we must pay attention to nutritional balance. Excessive intake of dha will produce a series of side effects such as low immunity. In addition, because dha can inhibit platelet aggregation and thrombosis, people with hemorrhagic diseases, liver cirrhosis and coagulation dysfunction should properly control the intake of dha to avoid bleeding or aggravate bleeding.
Expectant mothers need to consume not less than 400 mg of dha every day. Dha can be synthesized by ingesting nuts such as walnut kernel rich in linolenic acid and treating them with liver. The fat of marine fish shells is rich in dha. Therefore, pregnant women should determine the amount of dha added according to their own diet.
Here are some foods containing dha:
1. breast milk. The content of dha in colostrum is particularly rich. However, the dha content in breast milk depends on the food structure of three meals. Japanese mothers eat more fish, and the dha content in milk is as high as 22%, ranking first in the world; Followed by Australia, about10%; The United States is the lowest, only 7%.
2. Formula milk powder. Refers to formula milk powder with dha added.
3. fish. Fish with high dha content include tuna, bonito, salmon, mackerel, sardines, bamboo pod fish, swordfish, tuna, yellow croaker, saury, eel, hairtail, crucian carp and so on. The dha content in each 100 g fish can reach more than 1000 mg. As far as a certain kind of fish is concerned, the part with high dha content promotes orbital fat first, followed by fish oil.
4. dried fruit. Such as walnuts, almonds, peanuts, sesame seeds, etc. The α -linolenic acid contained in it can be converted into dha in human body.
5. seaweed.
6.dha products. There are two kinds on the market: one is extracted from deep-sea fish oil and the other is extracted from algae. The former is derived from fish fat, but it has at least three defects: (1) the content of epa in fish oil is too high, which makes the proportion of dha too low, which is quite different from breast milk and does not meet the physiological needs of children; (2) Although the dha content in fish oil is relatively high, it does not contain another unsaturated fatty acid-aa (arachidonic acid) which plays an important role in brain development, and too much epa will also inhibit the production of AA in children; ⑶ Fish are polluted to varying degrees by heavy metals such as mercury and lead or harmful substances such as arsenic, so the safety is low. In contrast, the advantages of algae are more prominent. Dha algae oil is a pure plant dha raw material, extracted from cultured marine microalgae, and is the purest and safest dha source in the world at present. It is particularly worth mentioning that the dha concentration of dha algae oil is much higher than that of fish oil extract, with high purity (dha content of dha algae oil is ≥ 35g/ 100g, and DHA content of fish oil is 3.6- 12.5g/ 100g), strong stability, difficult oxidation and odorless. The dha of Life of nasa technology (such as COFCO Fulinmen dha seaweed oil) has obtained fda certification. There are more than 40 million babies in the world who can eat safely and the quality can be guaranteed. Therefore, pregnant women and children should first choose algae dha products.