Here's the Article for those who can't link to it:
Are Vitamin K Shots Safe?
Mothering, March, 1999 by Cory A. Mermer
ONE OF THE FIRST SENSORY EXPERIENCES MOST NEW-borns have is the prick of a needle injecting vitamin K into his or her heel. Regarded as an important preventative against hemorrhage, the injections have become a routine part of newborn care. But several new studies have thrown doubt on the safety of vitamin K. One study, conducted in England, showed a relationship between vitamin K shots and an increase in childhood cancer. Another study, reported in a 1992 issue of the British Medical Journal, found an association between the injections and the development of childhood leukemia. The study's researchers concluded soberingly: "The prophylactic benefits against hemorrhagic disease are unlikely to exceed the potential adverse effects from intramuscular vitamin K." (See J. Golding, et al., "Childhood Cancer, Intramuscular Vitamin K, and Pethidine Given During Labour," British Medical Journal 305, 1992; 341-346.)
More recently, researchers reported in a 1998 issue of the British Medical Journal that they had documented a doubled risk for acute lymphoblastic leukemia among children aged one to six who had received intramuscular vitamin K. The study's authors called for an end to the routine injection of vitamin K, saying it should be administered only to those babies at particularly high risk of hemorrhage.
Here is a link to the British Medical Journal with abstracts from these studies:
http://www.bmj.com/archive/7126/7126a.htm#1
Happy sifting!
