The Latest Bad Rap on Supplements: What Does This Week’s Study Mean to Women?
Yesterday, I set out to write about the latest findings of a government-funded research study that concluded that in older women, several commonly used dietary vitamin and mineral supplements may do more harm than good; even, in some cases, causing a small increase in the risk of death.
Death? Really? From Vitamin B6 and multivitamins?
There must be more to this than was being reported, so I decided to go to the source, The Archives of Internal Medicine, where the findings were published, and read the study myself. Here’s what I learned.
First: The Facts
Researchers assessed the use of 15 vitamin and mineral supplements (including multivitamins, Vitamins B6, C and D, folic acid, magnesium, Iron and Calcium) in relation to total mortality in nearly 39,000 women in the Iowa Women’s Health Study. The participants were just under 62 years of age when they began the study in 1986. Supplement use, which was self-reported via a health questionnaire three times over 19 years, was widespread among these women and increased over the years.
In yesterday’s news reports about this study, we learned that the researchers found a small increase in the risk of death among older women who took dietary supplements compared with those who didn’t. However, what wasn’t reported in many news … [Read more]

