Many prenatal vitamins use folic acid instead of folate. Unlike folate, which is naturally occuring, folic acid is asynthetic form that takes the body much longer to convert usable forms of vitamin B9 after ingestion. That’s why we use folate – so your body can use the nutrient toits full potential.
Research speaks for itself.
Folate vs. Folic Acid
Folic acid is a synthetic form of vitamin B9, while folate is naturally occuring. Since folic acid has to undergo two conversion processes before being used by the body, it can overwhelm the liver – which you want to avoid during pregnancy.