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Supplements | “Stop Wasting Money” Editorial Ignores Full Body of Supplement Research
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By ignoring the positive and inconclusive results and not considering other research showing well-established benefits, the editorial presents an incomplete view.

“Stop Wasting Money” Editorial Ignores Full Body of Supplement Research

An editorial published in the Annals of Internal Medicine urges people to “stop wasting money on vitamin and mineral supplements” and concludes, “the case is closed.” While the particular studies in question did show negative findings for a short list of health conditions in certain populations, this opinion provides a narrow view of the depth and breadth of supplement research. It also ignores the complex relationship between nutrition and health and potentially leaves many people unnecessarily confused about supplements.

Overview of the overview

The editorial discusses three papers published in the same issue of the Annals of Internal Medicine that evaluate the effects of multivitamin and mineral supplements on new and recurrent cases of heart disease, and on the risk of cancer and mental (cognitive) decline:

  • Study 1. Exploring whether vitamin supplements prevent heart disease and cancer in healthy older adults, this paper reviewed 3 multivitamin trials and 24 single or paired vitamins trials that included over 400,000 randomly assigned participants. Though the editorial authors concluded there was no evidence of reduced chance of death from any cause, cardiovascular disease, or cancer, the review actually did find that supplements significantly reduced cancer risk—by 6%—in men.
  • Study 2. Looking at how well a daily multivitamin might prevent cognitive decline among participants in the Physicians’ Health Study II (5,947 men aged 65 years or older), this paper found no differences in thinking (cognitive) function between the vitamin and nonvitamin groups. However, other published findings from this very same study population have demonstrated that multivitamins may reduce the risk of cancer and cataracts.
  • Study 3. Considering whether taking multivitamins and minerals after a heart attack (myocardial infarction) might reduce risk of further heart attacks, this study did not show a benefit. However, the study authors themselves concluded that “nonadherence to the study regimen” rendered the results inconclusive. Taking the broader viewpoint

With high healthcare costs and the risks of side effects from many common drugs, consumers are well advised to consider all safe potential health resources available, including supplements. Here are some variables not factored into the editorial:

  • Other studies have found a positive association between supplements and reduced heart disease and cancer risks, including well-designed double-blind research.
  • Plenty of studies have shown therapeutic support for many other conditions not considered by the editorial, including osteoporosis, macular degeneration, anemia, high cholesterol, mood disorders, and many more.
  • Supplements have been found to help correct common deficiencies, proactively protecting against conditions that often accompany deficiencies.
  • Supplement effects are also influenced by intake amount and product quality, which were not taken into account.
  • Research has shown that certain therapeutic effects of nutrients require higher intake amounts than a person would ordinarily get with food or in a multivitamin.
  • Taking a multivitamin helps safeguard against dietary gaps.

Consider the full body of research

By ignoring the positive and inconclusive results in these studies and not considering other research showing well-established benefits, this editorial presents an incomplete view to the public and suggests a biased assessment of the research not shared even by doctors involved in the studies in question. Dr. Howard Sesso, MD, a lead researcher on the Physicians’ Health Study II, noted that, “because of the possible cancer-related benefits tied to multivitamins, they are still worth considering, in particular for people who may not get enough vitamins in their diet.”

Dr. J. Michael Gaziano, a Physician at Brigham and Women's Hospital and Professor of Medicine at Harvard Medical School, is a lead researcher on the Physicians' Health Study, and a co-author on one of the papers prompting the editorial. Dr. Gaziano told USA Today, “It drives me crazy that they say 'enough is enough,' when there's only been one large study of (standard) multivitamins and it's ours.”

No single analysis of the research can uncover the full complexity of the effects of nutrients—from dietary supplements or food—on total health. In the end, rather than close the book on dietary supplements solely on the basis of one questionable editorial opinion, it makes sense to consider the full body of evidence as well as your own personal health needs. Eat healthfully, exercise regularly, and work with a qualified healthcare practitioner to create a health plan that works for you.

(Ann Intern Med 2013;159:850–1)

Suzanne Dixon, MPH, MS, RD, an author, speaker, and internationally recognized expert in chronic disease prevention, epidemiology, and nutrition, has taught medical, nursing, public health, and alternative medicine coursework. She has delivered over 150 invited lectures to health professionals and consumers and is the creator of a nutrition website acclaimed by The New York Times and Time magazine. Suzanne received her training in epidemiology and nutrition at the University of Michigan, School of Public Health at Ann Arbor.

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The health information contained in this site is not intended as medical advice and should not be considered a substitute for appropriate medical care. Any products mentioned in studies cited in Healthnotes articles are not necessarily endorsed by Bastyr. As with any product, consult with a natural health practitioner to discuss what may be best for you.

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