These include inhalation solutions, chemotherapy, and immunosuppressive drugs
In addition, B12 is essential in several very important processes in our body: DNA synthesis, synthesis of myelin sheath (a fatty, neuron-wrapping sheath that serves to speed up neural conduction), it is also essential for energy production in mitochondria our furnaces within the cells, as well as making red blood cells in the bone marrow
Its also needed for your sense of smell and taste
According to the National Heart, Lung, and Blood Institute, this absorption failure makes B12 injections the primary and most effective treatment, as they deliver the nutrient directly where your body can use it, bypassing the digestive system entirely