Are Prenatal Vitamins Safe for Men?
Prenatal vitamins are designed to meet the specific nutritional needs of women who are pregnant or nursing. While prenatal vitamins aren't designed to accommodate men, they are generally recognized as safe for all adults. Standard prenatal vitamins do not contain any female hormones or prohormones and will not have any feminizing effects on a man's body. However, because prenatal vitamins contain large amounts of iron, some men may experience unpleasant side effects, including nausea and constipation.
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Reasons
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Men may have many reasons for taking prenatal vitamins. The American Pregnancy Association actually recommends prenatal vitamins for men whose partners are trying to conceive, since the zinc and folic acid in prenatal formulas can increase sperm count and motility. Prenatal vitamins are also used by men because of the folk belief that they can enhance hair growth; some nutritionists believe that the trace minerals and B-vitamins can help to nourish hair. Other men may take prenatal vitamins simply because their partners have some "left over" from pregnancy or lactation.
Folic Acid
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Overall, there are few major differences between prenatal vitamins and standard multivitamins. Prenatal vitamins always contain large amounts of folic acid--a B-vitamin that is essential in preventing neural tube defects, preterm birth and other pregnancy complications. There is no evidence that large doses of folic acid are harmful to men; in fact, most men are deficient in this essential nutrient. Folic acid will not appreciably affect a man's sexual health or hormone balance. Because folic acid is a water-soluble vitamin, any excess is flushed harmlessly through the kidneys.
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Iron
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Most men need only about 18 mg of iron daily, but prenatal vitamins can contain up to twice this amount. Serious iron overdoses are extremely rare among adults, but some men may experience nausea, constipation, stomach pain and even vomiting after taking a high-iron multivitamin. Men with irritable bowel syndrome, acid reflux and other digestive diseases are more prone to this unpleasant side effect associated with prenatal vitamins. Men who are interested in taking prenatal vitamins can avoid this side effect by taking a low-iron or iron-free formula.
Preconception Nutrition
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Men require extra zinc, folic acid and vitamin C to produce high-quality sperm. Using the supplements can reduce the incidence of neural tube defects and chromosomal abnormalities, while also helping to ensure maximum sperm count and motility. Some companies manufacture "prenatal" vitamins that are designed to more specifically suit the needs of men. While standard prenatal vitamins for women may help to accomplish this task, gender-specific vitamins are equally acceptable.
Risks
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While there are few risks associated with prenatal vitamins, some men should check with a doctor before taking any new supplement. Vitamins and minerals can sometimes cause interactions with prescription drugs. Rarely, a medical condition may be worsened by the addition of a specific vitamin or mineral combination. To play it safe, any man with a serious health condition should check with a qualified practitioner before taking a new supplement. In the event of an adverse reaction, men should stop taking the vitamins and promptly contact a physician.
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