Question: "Which are the best prenatal vitamins? And when should I start taking them if I want to try to get pregnant?"
There are so many prenatal vitamins on the market, available both by prescription and over-the-counter, that choosing one to take during your pregnancy can be quite overwhelming.
Prenatal vitamins are a multivitamin intended for women who are trying to conceive, are pregnant, or are nursing. They are meant to supplement a healthy diet with daily additional minerals and vitamins and are important for the well being of both the mother and the developing baby. Prenatal vitamins are specifically formulated to primarily ensure adequate intake of folic acid, iron, and calcium. Folic acid is important in the prevention of defects in the spinal cord or brain. Spina bifida is the most common example of a neural tube defect. Since the development of the baby’s central nervous system starts before many women even know they are pregnant, adequate intake of folic acid, at least 400 mcg a day, is recommended at least a month prior to conceiving. Some prescription prenatal vitamins have a special type of folic acid that is more bioavailable branded as Metafolin. Iron, at least 27 mg a day, is recommended to help prevent anemia, low blood count, which is very common as the pregnancy progresses. Iron, however, can also lead to constipation and for some women, upset stomach, so there are varying doses of iron in different prenatal vitamins depending on need and side effects. Calcium is important for the bone health of both the mother and baby. While 1,000 mg a day is recommended, most prenatal vitamins have between 200 and 300 mg with the rest of the daily requirement meant to be from dietary sources.
Prenatal vitamins generally also contain vitamin B 12, C, and D, as well as thiamine, riboflavin, niacin and zinc. Vitamin A, in high doses, can have serious consequences for a developing baby and should therefore be limited to less than 4,000 IU a day.
Many prenatal vitamins are now incorporating Docosahexaenoic acid (DHA) an omega-3 fatty acid, either into their supplement or as an additional softgel capsule because of reports of improved brain and eye development in the baby.
Prenatal vitamins come in many different sizes and forms such as gel tabs or solid tablets. There are even chewable and liquid forms for those who have difficulty swallowing a pill. Some are meant to be taken just once a day while others spread the daily dosages across several pills. Be sure you understand the daily dose you are receiving from the number of vitamins per day you are recommended to take. It is possible to have too much of a good thing so do not go over the daily recommended allowance by taking additional vitamins or supplements without checking with your obstetrician. Also, some prenatal vitamins have a stool softener to help with constipation. If you switch from one brand of vitamins to another, you may notice changes in your digestion, your bowel movements and even the color of your urine. The bottom line is that you should choose a prenatal vitamin that has enough of what you need, and not too much of what you don’t need, and is easy for you to take and tolerate during your pregnancy and the months that follow.