This vitamin is involved in forming DNA and red blood cells, as well as necessary for brain function, heart health, energy production, and more ( Its found naturally in many animal products and sometimes added to fortified foods ( Vegans, vegetarians, older adults, and people with digestive issues that can interfere with nutrient absorption may be at a higher risk of vitamin B12 deficiency and need to supplement ( summary Vitamin B12 is a water-soluble vitamin involved in several aspects of health, including DNA synthesis, red blood cell formation, and brain function
Overview How to self-inject intramuscular vitamin B12 This information is for patients who are being treated for nerve problems related to the use of nitrous oxide, also known as laughing gas or whippets
However, absorption decreases significantly as doses increase, and individuals with compromised gut health may absorb only 1-2%
Vitamin B12 injections are given to help patients who need them to maintain healthy levels of B12 in their body