Taking a supplement of folic acid alone may not be sufficient for pregnancy. Prenatal vitamins are usually recommended as they contain a variety of vitamins and minerals essential for both the mother and the baby. If the prenatal vitamins are difficult to swallow, there are chewable or gummy alternatives available. If the vitamins make you feel nauseous, try taking them in the middle or towards the end of a meal. It is important to ensure you are getting enough folic acid to prevent major birth defects. Typically, a daily dose of 1 mg is sufficient if you are not taking any other medications and do not have a history of major birth defects in a previous pregnancy.