– The Only Guide to MyPlate for Pregnancy – Diet and Nutrition – Marshfield Clinic od.nih. gov/factsheets/Iron-HealthProfessional/. Accessed Dec. 13, 2016. Dietary supplement reality sheet: Calcium. National Institutes of Health. od.nih. gov/factsheets/Calcium-HealthProfessional/. Accessed Dec. 13, 2016. Often asked questions. Pregnancy…