Taking supplements is recommended before, during and after pregnancy because the body is subject to many upheavals and nutrient needs are increased for the mother and child. Indeed, the College of French Gynecologists-Obstetricians (CNGOF) and the High Authority of Health (HAS) recommend the systematic supplementation of Vitamin B9 (folic acid) and Vitamin D.

Vitamin B9 contributes to the growth of maternal tissues during pregnancy and is essential for the proper development of the fetal nervous system. Vitamin D helps the proper development of the baby's skeleton.