Yet, when it comes to vitamins — which I take only when I feel run down — I turn to name brands like Centrum or Nature Made. My thinking has been: Why mess around with quality when it comes to the essential ABCs?
But now that I’ve done some research, I might soon change my vitamin-buying ways. Read on to find out why.
Americans love vitamins. About half of adults take a daily multivitamin, according to industry data. And according to some theories, the economic downturn has inspired them to fortify themselves by swallowing more.
Sales over the last decade had been growing by about 4 percent annually. But this year, as more people are taking their health into their own hands, perhaps hoping to stave off doctor bills, vitamin sales are expected to grow by 8 percent to a total of $9.2 billion, according to Nutrition Business Journal, a market researcher and publisher.
About 42 percent of shoppers purchase their vitamins at natural and specialty retail outlets, like GNC and Whole Foods, according to the journal, while only 23 percent take the discount approach and buy their bottles at supermarkets and club stores. The other 35 percent buy through mail order or from a health care provider.
Of course, it’s controversial whether we should be taking vitamins at all. Recent studies have indicated that taking a multivitamin won’t protect you from heart disease or cancer. And experts maintain that if you eat well, you don’t need vitamin supplements.
“The evidence shows that a healthy diet and exercise are the best way to ward off disease; a vitamin cannot replace those benefits,” says Eric Rimm, associate professor of epidemiology and nutrition at the Harvard School of Public Health.
But what if you don’t eat well or are chronically stressed out? Then, Professor Rimm says, there may be some benefit from taking a multivitamin. “Certain subgroups, including women of child-bearing age attempting to get pregnant, may need specific supplements, like folic acid and omega-3,” he added.
As for the matter of cost: If you take only a daily multivitamin mainly as a medical insurance policy, it certainly won’t hurt your health — as long as you do not already eat a lot of fortified food. And it could help. But it will require spending some money. And if you take a multivitamin and a few individual vitamins and minerals, it’s even more worth your while to make sure you’re not paying more than you need to.
Here’s how to get the most vitamin for the least money.
USE ONLY WHAT YOU NEED Popping too many vitamin pills is not only a waste of money but can be bad for your health. Talk to your doctor about what added vitamins or minerals you might require; you can ask for a blood test to learn what you might be lacking.
For example, if you don’t get enough vitamin D — many people who live in the northern states or who wear sunscreen everyday are low on this crucial vitamin — then buy just a D supplement. Standard multivitamins will probably not have the levels of D you require (many doctors suggest taking 1,000 to 2,000 international units a day).
If your doctor recommends a specific supplement, like omega-3, ask in what form you should be taking it.
FIND A REPUTABLE SOURCE Vitamins and minerals are commodity items, and every manufacturer has access to the same ingredients. For that reason, researchers and scientists say paying more for a name brand won’t necessarily buy you better vitamins.
“When we measure levels of vitamins in the blood, we find the levels are the same whether the person was taking a generic brand or a name brand,” says Dr. Rimm, who has been studying the effects of vitamins for 20 years.
That said, don’t be too cheap. Purchase your vitamins from well-known retailers that do a brisk business and restock frequently, whether that’s Costco or Drugstore.com. Vitamins lose their potency over time and must be stored at, or below, room temperature. If bottles are sitting on a shelf in warm room or in direct sunlight, they may degrade even before their expiration date.
PRICE MAY NOT MEAN QUALITY While the Food and Drug Administration regulates vitamins as part of the nutritional supplement industry, it does not test them before they are put on the shelves. The F.D.A. places the responsibility on the manufacturer to ensure that its dietary supplement products are safe before they are marketed. All of which means that no matter what the price, quality is not assured.
ConsumerLab.com, a company based in White Plains that tests hundreds of vitamins each year, finds that 30 percent of multivitamins have a quality problem: the pills might have more or less of a stated ingredient, or they might not dissolve properly.
“We haven’t found any brand with a broad product line that makes every product well,” says Dr. Tod Cooperman, president of the company.
Taking exception to such assertions is the vitamin industry’s trade group, the Council for Responsible Nutrition. In response to questions, the council released a statement from Andrew Shao, a vice president for scientific and regulatory affairs.
Mr. Shao said that the F.D.A. allowed for “a reasonable amount of variation” — which he characterized as up to 15 percent more of an ingredient than the label might indicate. Mr. Shao said that manufacturers frequently add slightly more of an ingredient to ensure that the amount is at least at the level claimed on the label as the product nears the end of its shelf life.
In any case, ConsumerLab.com says it has found a few patterns that consumers may find helpful. Products sold by vitamin chains tend to be more reliable than drugstore brands, and Wal-Mart and Costco’s vitamin lines are usually worth considering. In a recent test of multivitamins, ConsumerLab.com found that Equate-Mature Multivitamin 50+ sold by Wal-Mart was just as good as the name brand Centrum Silver, but at less than a nickel a day is half the price.
Puritan’s Pride, a catalog and online retailer, also has very good prices, and Dr. Cooperman says that its products are generally good.
Curious consumers can subscribe to ConsumerLab.com for $30 a year and learn how other supplement brands fare in the lab’s tests.
CERTIFICATION SYMBOLS One quality check you can make, although it is not a perfect screening, is to see whether a product is certified by one of several nonprofit organizations that check supplements for purity and quality.
The two most commonly used groups are the United States Pharmacopeia (www.usp.org) and NSF International (www.nsf.org), according to Mr. Shao. Manufacturers voluntarily submit a product for review and, if it passes, the product can bear an approval seal, such as USP or NSF. Because the process is voluntary, Mr. Shao points out, the absence of the seal does not necessarily mean the product is of poor quality.
But at least the seal should mean you know what you’re getting. And with vitamins, anything beyond that simple assurance may not be worth paying for.
