Based on evidence from clinical studies, the USPHS, AAP, and ACOG recommend a folic acid intake of 0.4 mg/day PO from food and/or supplements in females during the child-bearing years, and 0.6 mg PO daily throughout pregnancy
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1 2 3 Vitamins in Animal and Human Nutrition (2nd ed.)
It is also vital for red blood cell health, energy production and DNA replication and repair and has a role to play in breaking down the amino acid homocysteine, high levels of which have been linked to an increased risk of heart disease, stroke and dementia
Future research should investigate long-term outcomes in high-risk populations, direct comparisons between physiological and pharmacological dosages, cost-effectiveness analyses, and adherence metrics to inform optimal strategies for the prevention and management of vitamin B12 deficiency
Most patients become comfortable within a few weeks of practice