Vitamin B9

Vitamin B9 is one of the most important vitamins for human development and function. B9 is more commonly referred to as folic acid. Folic acid is one of the most important things a pregnant woman can take to ensure the proper growth and development of her baby. It particularly helps with the development of a baby’s brain and spine.
Of course, getting enough vitamin B9 on a daily basis is also very important for people who are not pregnant. Like all of the B vitamins, B9 helps the body convert food into energy. It is crucial for healthy skin, eyes and liver function.

Signs of a Vitamin B9 Deficiency

Crohn’s disease, celiac disease and other digestive disorders can prevent folic acid from being properly absorbed in the body. In addition, ingesting excessive amounts of alcohol and eating overcooked vegetables can also make it difficult for the body to absorb folic acid. The body may experience depletion in a number of ways when there is not enough vitamin B9 being taken in.

The most obvious symptom in babies and children is poor growth. Adults often experience gingivitis, tongue inflammation, shortness of breath, diarrhea, mental sluggishness and loss of appetite when a shortage of vitamin B9 is occurring. Pregnant women who do not get enough folic acid during pregnancy are at a higher risk for having children with birth defects.

Vitamin B9 Excess

Too much vitamin B9 has some small side effects that should be avoided. Some people who take large doses experience stomach issues, skin rashes, nausea, sleep issues and seizures.



The necessary daily dosage of vitamin B9 is dependent on age.

  • Infants under six months require 65 micrograms.
  • Infants between seven months and one year of age require 80 micrograms.
  • Children between one and three years of age require 150 micrograms.
  • Children between four and eight years of age require 200 micrograms.
  • Children between nine and 13 years of age require 300 micrograms.
  • All people above 14 years of age require 400 micrograms.
  • Pregnant and breastfeeding women should take between 500 micrograms and 600 micrograms.