Other factors that could lead to B12 deficiency are: Lack of adequate production of the intrinsic factor needed for B12 absorption B12 deficiency is common in elderly people as absorption of the vitamin reduces with age People who have had any intestinal surgery, such as that for weight loss Those with gut conditions such as Crohn's Disease, inflammatory bowel disease, or celiac disease SLIDESHOW See Slideshow Vitamin B12 injections Vitamin B12 supplements are given based on the condition that causes deficiency
Intravenous Delivery: When and Why Intravenous (IV) Vitamin B12 is for very bad cases or when you need it fast
All these decisions will depend on your preference and what you need
Given this, the length of the needle is somewhat optional
People with normal liver function store 50% of their vitamin B12 in their liver, so if your liver is not functioning properly, you may need more vitamin B12 shots than those whose livers are working as designed
As with any treatment, share your full health history with your provider so they can confirm B12 injections are a good fit for you