Complete multivitamins are generally safe for most adults to take; however, prenatal vitamins are directed specifically for use by pregnant women. Certain physicians may prescribed these vitamins to women who are not pregnant, such as people who are anemic, women planning to become pregnant or people who are extremely malnourished. Since men and women have different requirements for certain vitamins, it is generally not advisable for men to take prenatal vitamins without the consent of a physician.
Prenatal Vitamin Usage
A prenatal vitamin is a special multivitamin that contains certain levels of vitamins and minerals to meet the needs of the mother-to-be and unborn baby. These vitamins are taken once daily by mouth and are available in both capsule and chewable forms. Prenatal vitamins contain high levels of the minerals iron and calcium, which if taken by a man may result in toxicity over time.
Vitamin Toxicity
Vitamin toxicity occurs when too much of certain vitamins -- namely vitamins A, E, D or K -- are taken in high dosages over a short or extended period of time. Toxicity symptoms can be mild and easily treatable by discontinuing the usage of the vitamin. However, toxicity can also be acute, resulting in weakness, slurred speech, fainting, nausea, vomiting or confusion. Severe cases of toxicity can lead to coma and death.
Iron Overdose
Prenatal vitamins contain a large volume of iron, which, if taken outside of the recommended daily allowance, can lead to iron overdose. Symptoms of iron overdose are fluid in the lungs, bloody stool, liver damage, vomiting, diarrhea, low blood pressure, shock, chills, coma, convulsions, fever, bluish-colored lips and fingernails and loss of color from skin. Iron overdose can be treated, and you would be expected to make good recovery within 48 hours. However, according to Medline Plus, people have been known to die up to a week after the overdose.
Considerations
If you want to supplement your diet, try regular multivitamins. Multivitamins provide all of the vitamins and minerals needed for survival. You can also try multivitamins formulated for men. Men and women require different doses in certain vitamins and minerals, so taking a vitamin formulated for men can ensure that you are taking the correct dose of each vitamin.
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