The Vitamin K1 Shot and a Parents Right to Know

By Monica Guevara The vitamin K1 shot is commonly given to newborns shortly after birth as part of routine hospital care. Many parents may assume it is simply a normal part of the birth process and may not give it much thought. But routine should never replace informed consent. Parents deserve to know what is being given to their baby, why it is being given, what ingredients it contains, what the risks and benefits are, and what options they may have before any decision is made. So first: what is the vitamin K1 shot meant to prevent? VKDB, or vitamin K deficiency bleeding, is the term now used for certain rare bleeding problems in newborns that are generally attributed to low vitamin K and reduced clotting ability. It can be serious, especially when the bleeding is internal and may not be visible right away. But the name itself already points to one explanation, and I think that is worth questioning too. Before VKDB became the preferred term, these cases were commonly referred to as “hemorrhagic disease of the newborn.” In 1894, Dr. Charles Wendell Townsend described newborn bleeding that was not due to traumatic birth or hemophilia. Later, vitamin K deficiency became the prevailing medical explanation for many of these cases. Unless there is already a known problem, the vitamin K1 shot is not treating a diagnosed condition in the baby. It is being given prophylactically—that is, as a preventive measure against the very rare possibility of VKDB developing. That distinction matters. VKDB is not exactly the same thing as hemophilia or another inherited blood disorder. There are different forms of VKDB, and the risk factors are not all the same. Early VKDB, which can happen within the first 24 hours, is more often associated with maternal factors, such as mothers taking certain medications during pregnancy, including Warfarin, seizure medications, or tuberculosis medications. Classic VKDB occurs in the first week of life and is associated with the baby’s low vitamin K intake after birth. Late VKDB occurs later in infancy and is more often connected with issues in the baby, such as chronic malabsorption, liver or biliary problems, cystic fibrosis, persistent diarrhea, or low vitamin K intake. So this is clearly not as simple as parents are often made to believe. That is exactly why parents should be included in the discussion. Newborns are known to have naturally low vitamin K levels at birth. The common medical explanation is that vitamin K does not pass easily through the placenta, breast milk contains only small amounts of vitamin K, and a newborn’s gut bacteria are not yet developed in the same way as an older child or adult. But just because something is low at birth does not automatically mean it is a mistake. Is it possible that babies are born this way for a reason we have not fully understood? Whether one believes in God, nature, or evolution, the question is still worth asking. Why are babies naturally born with low vitamin K1 levels? Is this only a deficiency to be corrected immediately, or could there be a natural purpose that deserves more discussion? There is certainly risk for many things after a newborn begins adjusting to life outside the mother’s body. VKDB is one of the many things for a parent to consider, but the decision should not be made for them. If parents feel the vitamin K1 shot is the right choice for their baby because of a known family history, medical concern, or simply because they feel the benefits outweigh the risks, no one should pressure them not to get it. If they feel the risks outweigh the benefits, no one should pressure them into it either. The point is not to tell every parent what to decide. The point is that parents should be given full, honest information and allowed to make the decision for themselves. That is where the problem begins. Too often, parents are not given a clear, balanced explanation. They may be told only that the shot is routine, safe, and necessary. But informed consent should mean more than that. It should include the purpose of the treatment, the ingredients, the possible risks and side effects, the alternatives, and the possible consequences of declining. All ingredients should be disclosed without bias toward scaring or reassuring parents. Just tell them clearly what is in the product being offered. Parents should be able to see the exact product monograph or package insert for the vitamin K1 product being used in their hospital. They should know whether the formulation contains preservatives, benzyl alcohol, propylene glycol, or other excipients. They should also know whether the vitamin itself is synthetic, and what that means in the formulation. Parents should not have to guess. Some formulations have contained benzyl alcohol, and benzyl alcohol-preserved medications have been associated with serious reactions in newborns. Other formulations may be preservative-free but still contain other ingredients, such as propylene glycol. The exact formulation matters, and parents deserve to know which one is being used on their baby. There should also be more discussion about delayed cord clamping, breastfeeding, maternal nutrition, and oral vitamin K options. Some parents may want to consider supplementing the breastfeeding mother, improving maternal intake of vitamin K1-rich foods, or using oral vitamin K for the newborn. Parents should also be told that medical authorities generally consider oral vitamin K less effective than the shot—but that still does not mean parents should be denied the information. Even mothers who do not have enough breast milk should be given helpful ideas and options, not just one option presented as the only acceptable choice. We also need to be honest about what we do not know. We do not necessarily see negative effects in children who receive the shot—but are we even looking? Are we asking the right questions? Could there be any connection, in some children, to things like lifelong anxiety, difficulty in school, ADD, or other issues that may never be traced back because no one is opening that dialogue? I am not saying we know the answer. I am saying parents have the right to ask the question. A large U.S. study of more than five million newborn records suggests that more parents are declining the vitamin K1 shot. BORN Ontario recently confirmed that hospitals across the province are seeing the same trend. I know several new mothers who have declined the vitamin K1 shot, and I have never heard of any of their babies experiencing negative effects from not receiving it, including my own two grandkids. Personal experience is not the same as scientific proof, of course, but it is part of why many parents want a more open and respectful conversation. What should not happen is coercion. Parents should not be hounded after an exhausting birth, when they are vulnerable, emotional, and recovering. If they have already made an informed decision before labour begins, that decision should be respected. The original decision should stand. Leave these parents in peace. Parents who decline the shot should also be practical. If you are firm in your decision, keep your baby close and have an advocate with you whenever possible. If the baby needs to go to the ICU, or for tests or procedures where you cannot be present, have your advocate follow the baby and calmly remind staff of your decision. A simple, respectful reminder may be all that is needed: “Our baby is not to receive the vitamin K1 shot” or “Our baby has already received an oral dose of vitamin K1.” Hospital staff are likely doing the best they can, and many are wonderful people who only want to help mothers rest, recover, and keep babies safe. But accidents can happen, especially when tasks are routine. If a chart shows the vitamin K1 shot has not been given, someone may assume it still needs to be given. That is why calm communication matters. No one should speak disrespectfully to hospital staff. Parents and advocates can simply, kindly, and repeatedly remind staff of what has been decided. This does not need to become a battle. We can work together as a community, grounded in respect, honesty, and informed consent. Parents deserve to understand what is being done to their newborn, and they deserve to be heard. Routine care may be common, but consent should still be required.