Conditions like pernicious anaemia (an autoimmune condition affecting a protein called intrinsic factor vital for B12 absorption), stomach issues (such as from reduced stomach acid or certain medications like proton pump inhibitors), intestinal disorders (like Crohns disease or coeliac disease), or even surgical removal of parts of the small intestine (e.g., gastric bypass surgery) can prevent proper absorption
Long-term efficacy is even more uncertain
Haematological symptoms often appear first and include: Persistent tiredness and weakness that doesn't improve with rest Breathlessness, even with minimal exertion Pale or jaundiced (yellowish) skin Heart palpitations or rapid heartbeat Neurological and cognitive symptoms may develop alongside or independently of anaemia: Pins and needles sensation (paraesthesia), typically in hands and feet Difficulty walking or problems with balance Memory problems or difficulty concentrating Mood changes, including depression or irritability Glossitis (sore, red tongue) or mouth ulcers In severe or prolonged deficiency, more serious neurological complications can occur, including peripheral neuropathy, subacute combined degeneration of the spinal cord, and cognitive impairment
What if it is administered to someone who should not be getting them
Benefit } Final Thoughts MIC B12 injections represent a treatment option that requires consideration of individual health factors and proper medical oversight
