Did you hear the breaking news last night—that multivitamins may shorten your life? Here’s how junk science from the AMA set off the media frenzy.
Bloomberg phrased it this way: “Multivitamins and some dietary supplements, used regularly by an estimated 234 million US adults, may do more harm than good, according to a study that tied their use to higher death rates among older women.” The study’s authors outrageously concluded, “We see little justification for the general and widespread use of dietary supplements.”
The study, published in the American Medical Association’s (AMA’s) Archives of Internal Medicine, assessed the use of vitamin and mineral supplements in nearly 39,000 women whose average age was 62. The researchers asked the women to fill out three surveys, the first in 1986, the second in 1997, and the last in 2004, reporting what supplements they took and what foods they ate, and answering a few questions about their health.
That’s right, all the data was self-reported by the study subjects only three times over the course of the 19-year-long study. To say the data is “unreliable” would be a generous description. This kind of “data” has no place in a valid scientific study.
Then the researchers looked at how many of the women had died by 2008. They reported that the number of deaths were somewhat higher for women who took copper, a little bit lower for women who took calcium, but about average for most of the women.
In the study, all of the relative risks were so low as to be statistically insignificant, and none was backed up by any medical investigation or biological plausibility study. No analysis was done on what combinations of vitamins and minerals were actually consumed, and no analysis of the cause of death was done beyond grouping for “cancer,” “cardiovascular disease,” or “other”—there was certainly no causative analysis done. The interactions of potential compounding risk factors is always tremendously complex—and was ignored in this so-called study.
“Multivitamin” can mean many different things, and of course changed tremendously over the 19 years during which this “study” was conducted. Were they high quality? Were the ingredients synthetic or natural? How much of each nutrient was taken? Were they really taken at all? How good is anyone’s memory in describing what took place over many years? One would assume that that the women’s diets fluctuated greatly over the same period; when self-reporting only three times in 19 years, there is a great deal of information one would naturally leave out even if some of it was accurate. No analysis was done of the effect of supplements on the women’s overall health, nor of their effect on women of other ages.
According to Dr. Robert Verkerk the Executive & Scientific Director of ANH-International;
“This study is a classic example of scientific reductionism being used to fulfill a particular need. In this case, it’s supplement bashing, a well-known preoccupation of Big Pharma — and an approach that appears to be central to the protection of Big Pharma’s profit margins.”
Read Dr. Verkerk’s article critical of the AMA’s goals and scientific methodology here.
In short, this study is less than useless: it is dangerous, because it is being used by the media and the mainstream medical establishment to blacken the eye of nutritional supplements using poor data, bad analysis, and specious conclusions—otherwise known as junk science.
Love being a mom! That's why I love Shaklee.
- Jennifer Brooks
- As a mom of 3 little ones, I wrestle alongside all the other moms I know with how to support my kids without hovering, how to get them to eat good food without making them hate dinnertime, how to deal with the constant feeling of sand on my kitchen floor without getting rid of the sandbox. But when it comes down to it, all we want is for our kids to enjoy learning and new experiences, to feel safe and loved, and to live as healthy a life as possible. I want to inspire other Moms in their desire to help their families live a stronger and healthier life by making our homes and what we put into our bodies as toxin-free as possible. Especially the littlest of bodies. There is a lot of info on this site to explore and I hope it is helpful and relevant to you in some way. And if you’d like to share your thoughts or other information with me, I’d love it! We all have to find inspiration in one another!
