A recent study showed that between two thirds and three quarters of the trials published in the major journals – Annals of Internal Medicine, The Journal of the American Medical Association (JAMA), Lancet, and New England Journal of Medicine – are funded by the pharmaceutical industry. 1

Drug company ads made up 72% of all advertisements in the top five medical journals in 2006 and 2007.

Plus, journals with the most pharmaceutical ads were significantly more likely to publish articles concluding that dietary supplements were unsafe, than the journals with fewer pharma ads. 2

Studies concluded pharmaceutical advertising biased these medical journals against non-drug therapies.

1.      Egger M, Bartlett C, Juni P (2001) “Are randomised controlled trials in the BMJ different?” BMJ 323: 1253.

2.      Fugh-Berman A, Alladin K, Chow J (2006) “Advertising in Medical Journals: Should Current Practices Change?” PLoS Med 3(6): e130. doi:10.1371/journal.pmed.0030130

What Doctors Are Reading May Put Your Health at Risk  Al Sears MD July 1st 2010

Thanks to Dr Al Sears.