Can excess intake of folic acid during pregnancy be harmful to baby.

Question

Folic acid is a pregnancy superhero! Taking a prenatal vitamin with the recommended 400 micrograms (mcg) of folic acid before and during pregnancy can help prevent birth defects of your baby's brain and spinal cord.
P regnant women are often encouraged to supplement their folic acid intake to prevent birth defects, but too much may also carry risks, according to a new study which links excessive folate and vitamin B12 to a greater risk of autism in the child. But the findings come with important caveats.
Mothers that take excessive amounts of folic acid during pregnancy may predispose their daughters to diabetes and obesity later in life, according to a new study. With high dose supplements being widely available, the study calls for a need to establish a safe upper limit of folic acid intake for pregnant women.
Folic acid for those at higher risk of neural tube defects. Some women have an increased risk of having a pregnancy affected by a neural tube defect and are advised to take a higher dose of 5 milligrams (5mg) of folic acid each day until they are 12 weeks pregnant.

Potnuru Srinivaasa Sudhakar · Accepted Answer

Folic acid is a pregnancy superhero! Taking a prenatal vitamin with the recommended 400 micrograms (mcg) of folic acid before and during pregnancy can help prevent birth defects of your baby's brain and spinal cord.
P regnant women are often encouraged to supplement their folic acid intake to prevent birth defects, but too much may also carry risks, according to a new study which links excessive folate and vitamin B12 to a greater risk of autism in the child. But the findings come with important caveats.
Mothers that take excessive amounts of folic acid during pregnancy may predispose their daughters to diabetes and obesity later in life, according to a new study. With high dose supplements being widely available, the study calls for a need to establish a safe upper limit of folic acid intake for pregnant women.
Folic acid for those at higher risk of neural tube defects. Some women have an increased risk of having a pregnancy affected by a neural tube defect and are advised to take a higher dose of 5 milligrams (5mg) of folic acid each day until they are 12 weeks pregnant.