Vitamin C required for Preggies

As per TAP article, preggies need 200-500mg of Vit.c pero sakin yung multivitamins ko na Obimin meron lang 100mg. Do I need a separate Vit.c to achieve atleast 500mg daily? Do you have any reco? Thank you 🙂#1stimemom #pleasehelp #advicepls