TORONTO, Nov 10, 2004 (Canada NewsWire via COMTEX) -- The recent meta-analysis,
High-Dosage Vitamin E Supplementation May Increase All-Cause Mortality, is an
obvious attempt to sensationalize the field of clinical research and promote the
interests of a select group of researchers. The press release about this
research, issued by Johns Hopkins University, over-simplifies years of clinical
research on Vitamin E and has the potential to create significant and wholly
unnecessary fear among vitamin users that there is an increased risk of
mortality from Vitamin E supplementation.
The full meta-analysis, published in the Annals of Internal Medicine, clearly
indicates "high dosage trials evaluated as part of the meta-analysis were often
small and were performed in patients with chronic diseases". Therefore, the
researchers' conclusion that there is an increase in total mortality among
people who were taking high dosage Vitamin E supplementation can, at best, only
be applied to patients who were already suffering from major illnesses such as
heart disease.
It is crucial to note that the study does not suggest that Vitamin E was the
cause of death among these people who were already afflicted with a
life-threatening illness.
It is equally important to note that this is not a clinical study but a skewed
statistical review. The researchers ignored all studies where there was no
indication of increased mortality and focused solely on people who died, from
any cause, during the study evaluation timeline.
This research does not actually evaluate benefits or risks of Vitamin E
supplementation on the general population, so it is extremely irresponsible to
conclude that there is any risk "...to the millions of North Americans who take
vitamin E supplements". To Jamieson Laboratories' knowledge, no clinical study
has been published that documents any toxicity associated with Vitamin E.
This clearly does not warrant the sensational and erroneous headline used in the
media release.
Years of clinical research shows that Vitamin E supplementation is safe. This
has been clearly documented in clinical trials including:
- Morris CD, Carson S. Routine vitamin supplementation to prevent
cardiovascular disease: a summary of the evidence for the U.S.
Preventive Services Task Force. Ann Intern Med. 2003;139:56-70.
- Vivekananthan DP, Penn MS, Sapp SK, Hsu A, Topel EJ. Use of
antioxidant vitamins for the prevention of cardiovascular disease:
meta-analysis of randomised trials. Lancet. 2003;361:2017-23.
- Shekelle PG, Morton SC, Jungvig LK, Udani J, Spar M, Tu W, et al.
Effect of supplemental vitamin E for the prevention and treatment
of cardiovascular disease. J Gen Intern Med. 2004;19:380-9.
Vitamin E is a Health Canada approved and regulated product. The dosages are
carefully monitored and reviewed, as part of a pre-approval process by Health
Canada for safety and efficacy.
VIEW ADDITIONAL COMPANY-SPECIFIC INFORMATION:
http://www.newswire.ca/en/releases/orgDisplay.cgi?okey=8644
CONTACT: For further information: Media interested in additional documentation on
Vitamin E clinical trials and outcomes are invited to contact Stephanie Blok
at Jamieson Laboratories at (416) 960-0052