.gov is the current domain extension type used by most United States government or government supported sources. You can trust these sources to be, if not accurate, then at least backed by the majority of the US population and governing power as the most commonly perceived knowledge in that sector.
Folic acid is good for pregnancy. I think all woman should take it during pregnancy. It helps prevent birth defects.
Hope this helps.
(I really need a crown to go on the next rank.)
Ignore the comment above.
