14 years old junior high school students can eat DHA. DHA is an essential polyunsaturated fatty acid, which is rich in fish oil. It is one of the important parts of human brain development and growth, which can promote brain development, enhance body resistance and increase memory to a certain extent.
14-year-old junior high school students can eat DHA at 9: 00-1:00 am, because junior high school students are more energetic at this time. Eating DHA at this time can effectively improve their memory and reduce their study pressure.
Children from six months to two years old grow up quickly and need adequate nutrition. Taking DHA can help children's brain development. Between six months and two years old, children grow and develop fastest, and this stage is the golden age of development. Especially for two-year-old children, it can not only promote brain development, but also promote the development of children's hand-eye coordination ability.
Preparation method of DHA
Docosahexaenoic acid, DHA, is an essential polyunsaturated fatty acid in fish oil. The molecular formula is C22H32O2, which is a linear fatty acid with 22 carbon atoms and 6 double bonds. Glycerol phospholipids in animals contain different amounts of DHA, which can be produced by α -linolenic acid during metabolism in vivo, but the output is low, mainly through food supplement.
In the early days, these products were mostly made from deep-sea fish oil (usually tuna oil) rich in DHA and EPA by molecular distillation, and existed in the form of a mixture of eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA), which we usually called Omega-3 or polyenoic acid ethyl ester. The most advanced products are made from marine microalgae rich in DHA and without EPA through fermentation process.