The clinical efficacy of DHA is very definite and very desirable. Usually DHA is called brain gold among the nutrients of the brain, also called the propellant of intellectual development. 30%-45% of the total fat content in the brain is DHA. DHA is the chemical composition of docosahexaenoic acid, often called brain gold. DHA is a very important polyunsaturated fatty acid for the human body, belongs to the OMEGA-3 unsaturated fatty acid family of important members, belongs to the nervous system growth of a very necessary element, so is the brain and retina of the important components. dHA can be in the human cerebral cortex content intake of up to 20%, so very important for children’s intelligence and development.