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Test Your Supplements Savvy
Should you or shouldn't you pop one, two, or 10 pills full of vitamins, minerals, and/or other hard-to-pronounce dietary additives?
The decision about whether to take dietary supplements -- and, if so, which ones to choose -- gets harder all the time. It seems like nearly every day brings a new study that adds to the confusion about the role of supplements in our health.
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Once a Day
Though people with certain illnesses or conditions may need extra supplements, experts agree that nearly everyone can benefit from a once-daily multivitamin that includes minerals. Even the best eating plans can fall short of meeting all of the 40-plus nutrients we need each day.
"Most Americans fall short of meeting nutrient needs," says vitamin researcher and Tufts University nutrition professor Jeffrey Blumberg, PhD. "It is estimated that only 3% meet the new dietary guidelines, and clearly we can improve the overall nutrient composition of most diets with a simple, once-daily multivitamin/multi-mineral pill."
There's no need to spring for an expensive brand, says Katherine Tallmadge, RD, author of Diet Simple.
"A generic brand is just as good as the best-selling brands," advises Tallmadge, also a spokeswoman for the American Dietetic Association. "Compare label ingredients and look for multis that include up to 100% [of the Recommended Dietary Allowances] of most vitamins and minerals."
Too Much of a Good Thing
When it comes to vitamins and minerals, there is such a thing as too much of a good thing. Dietitians have long warned of the dangers of excess vitamins and minerals, especially the fat-soluble types (vitamins A, D, E and K) ones that are not easily eliminated from the body.
"Individuals who start the day with a vitamin drink, eat energy bars throughout the day along with fortified foods, and [take] a cocktail of individual supplements risk developing serious vitamin or mineral toxicities," warns Tallmadge.
While illnesses resulting from mega-does of vitamins and minerals are rare, it's better to be safe than sorry, Tallmadge says. "The scientific research is lacking on the long-term safety of large doses of supplements," she warns.
Taking a daily multivitamin, on the other hand, won't put you at risk of overdoing it, says Blumberg. "The risk of dietary deficiencies is far greater than the risk of overdosing on vitamin and mineral supplements," he says.
Food First
Experts say it's important to keep in mind that supplements are intended to enhance, not take the place of, a healthy diet. That's because food offers so much more than vitamins and minerals.
"It is safer to get nutrients from foods than supplements because of the disease-fighting, interactive compounds; fiber; and phytochemicals that occur in food and do not exist in a pill," says Tallmadge.
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