DHA is an omega-3 fatty acid, chemically it is a carboxylic acid with a 22-carbon chain and six cis double bonds. Its chemical formula is C22H32O2 and Mol. Mass is 328.488 g/mol. Fish oils are the primary source of DHA. Research is being done on its application in treatment of Alzheimer's disease. It is also used as a supplement by pregnant women because studies indicate that low levels of erythrocyte DHA are associated with poor retinal development, low visual acuity, and poor cognitive development. DHA is becoming popular as a supplement for infants because it promotes healthy brain development and makes infants gain weight faster.

EPA (Eicosapentaenoic Acid) is among the many omega3 fatty acids that are used by the body. It is present in fatty fish, and also in fish oil supplements, together with DHA (docosahexaenoic acid). This fatty acid is an element of a healthy diet, and reduces the hazards of heart diseases. Enhanced ingestion of EPA has positive effects on high blood pressure, coronary heart diseases, and disorders related to inflammation, like rheumatoid arthritis. If you do not get enough EPA in your diet, you need to take supplements. This fatty acid is extremely vital for proper development of children’s brains.

Fish Oil used to be regular oil derived from oily fish, it looked and smelled the part and children simply hated it, although it was good for them. Containing omega-3 fatty acids, EPA and DHA, the two precursors to eicosanoids, in some higher quality cases also omega-6 fatty acids, fish oil is perhaps one of the most important supplements given to children during their development. In recent times, the contamination of fish in the sea through mercury and dioxin, among other pollutants, has prompted the FDA to carefully review the sourced of the preferred brand product. Nevertheless, the fish oil supplements have only gained popularity for all the health benefits that are provided. The health benefits are just too numerous to list, but from the heart to brain and nervous system, the whole body profits immensely.

Vitamin E is a fat-soluble vitamin and is an antioxidant. Vitamin E helps to gradually break down blood clots in the circulatory system and helps prevent more from forming. Involved in red blood cell formation.