Evidence supporting the use of: Vitamin B12 (various)
For the health condition: Pregnancy (herbs and supplements for)

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Synopsis

Source of validity: Scientific
Rating (out of 5): 4

Vitamin B12 is scientifically validated as an important nutrient during pregnancy. Adequate B12 intake is essential for DNA synthesis, red blood cell formation, and neurological development. Deficiency in B12 during pregnancy can lead to serious complications such as neural tube defects, developmental delays, preeclampsia, and increased risk of miscarriage. Clinical studies show that low maternal B12 status is associated with adverse pregnancy outcomes, including impaired fetal growth and increased risk of anemia in both mother and child. The need for B12 is particularly critical in women who follow vegetarian or vegan diets, as this vitamin is primarily found in animal-based foods.

The U.S. National Institutes of Health and numerous professional organizations recommend that all pregnant women ensure adequate B12 intake, either through diet or supplementation, especially if dietary sources are insufficient. Supplementation is not only traditionally practiced but is grounded in strong scientific evidence, and B12 is a standard component of prenatal vitamins. While B12 is not an "herb," its use as a supplement in pregnancy is well-established and strongly supported by clinical research. However, routine supplementation in women without deficiency is not universally required, as excess B12 is generally excreted via urine and toxicity is rare. In summary, Vitamin B12 supplementation during pregnancy is supported by substantial scientific evidence for those at risk of deficiency and is essential for healthy maternal and fetal outcomes.

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