Infant (0-1)…  

No extra supplementation is required for infants.

In infants, folate levels must be adequate to support rapid tissue growth and the creation of red blood cells.  The Institute of Medicine has set the amount of folate required for infants at the level that maintains blood folate concentrations comparable with those of the infant exclusively fed human milk.[50]  While the serum and plasma folate values reported in infants are much higher than the values for adults, no data have been found to support the need to adjust diet.[51]  There have been no reports of signs of folate deficiency in full-term infants who are exclusively fed human milk.[52]  The concentration of folate in human milk remains relatively constant regardless of dietary folate intake, unless there is a severe maternal deficiency.[52]