Talk to your doctor. Actually, there could be minor harm. Prenatal vitamins are loaded with good stuff for a fetus' body, not so much a woman's body. There's a lot in there that you don't need, including stuff you never hear about, like choline. There are also nutrients that are intended to help the fetus' body absorb and use fat. And there's usually a megadose of folic acid. It's so important for fetal development that most countries have required food manufacturers to add to to basic foods like flour and cereals to make sure women who get pregnant accidentally will have been eating enough. BUT... Too much of a good thing isn't a good thing. Excessive folic acid can increase your risk of heart disease, and if you've been overweight you're already at increased risk for that.
There's also the harm to your wallet. Prenatal vitamins cost more, for things you don't need. When it comes to supplements, price has little or no connection to quality. The One-a-Day that you're already taking is probably one of the best options, because it's a widely-known brand that has a lot to lose if they get into any sort of legal trouble. Since supplements aren't regulated or inspected, the manufacturers don't actually have any obligation to tell the truth on the label or even make a safe product. I could put sawdust in a pretty bottle and sell it as a dietary supplement, and nobody could sue me because there's no law against it. If a manufacturer does that, all the FDA can do is make a huge announcement so nobody will buy that brand. Small companies can then just change their name. In fact, there have been big problems with vitamins that contain NONE of the nutrients they say, and with others that are contaminated with things like lead and arsenic. But companies like One-A-Day or Centrum have a reputation to defend-- it's their biggest asset. They do their own testing and quality control, so you're going to be getting pretty much what the label says.
It's questionable whether daily vitamin supplements are necessary for normal healthy people, anyway. But if they are, what you're already taking is probably the best thing for you.
| current weight: 132.0