Women planning to become pregnant , who are pregnant or breastfeeding should pay particular attention to their nutritional intake.​ Adapting your needs is necessary for a successful pregnancy, a good level of nutrition and the health of the foetus and newborn baby. This includes two polyunsaturated fatty acids in the omega-3 family that are precursors of cellular components : DHA and EPA. Most DHA and EPA is transferred from the mother to the foetus at a late stage, between the 35th and 40th week. So reserves acquired before pregnancy and during the first 6 months of pregnancy play an important role. In addition, during breastfeeding , the amount of DHA and EPA in breast milk is strongly influenced by diet.  ​