A narrative review investigating the benefits and risks of high-dose folic acid for women with pre-existing diabetes in periconception concludes doses of 4mg folate a day or 5mg every second day are warranted, taking individualised needs into consideration.
Policymakers need to review the current methods of ensuring folate sufficiency among women of childbearing age, said a group of Australian researchers who found that food and supplements could not provide optimal folate intake.
Folic acid is the most popular supplement with pregnant Japanese women, according to a survey conducted by Beanstalk Snow, a Japanese manufacturer of infant nutrition products.