Infertility Below are some of the signs and symptoms of vitamin B12 deficiency: Difficulty thinking and remembering Fatigue Heart palpitations Pale skin Weight Loss Infertility Numbness and tingling in the hands and feet Mood changes A sore tongue Low appetite Constipation The following risk factors can increase the chance of developing Vitamin B12 deficiency: High alcohol consumption Older age Pernicious anaemia Atrophic gastritis Helicobacter pylori infection Coeliac disease Crohns disease History of gastrointestinal surgery Following a plant-based diet Pancreatic insufficiency AIDS Some hereditary conditions that affect vitamin B12 absorption There are some possibly side effects of Vitamin B12 injections and these can include: Pain, redness, or itching at the site of the injection Mild diarrhea Swelling sensation in the body Temporary itching of the skin If anyone experiences difficulty breathing, hives, and swelling they need emergency medical help as they may be experiencing anaphylaxis which is a severe allergic reaction

Important Safety Reminders Medical Supervision Required: AOD-9604 should only be used under qualified medical supervision Baseline and monitoring laboratory testing is recommended Individual contraindications and health status must be evaluated AOD-9604 is not FDA-approved for any indication Contraindications and Precautions: Pregnancy and breastfeeding (no safety data available) Active malignancy (discuss with oncologist) Pediatric use (not studied in children) Significant organ dysfunction (limited safety data) Report Concerns: Any unexpected symptoms or adverse effects should be reported to your healthcare provider promptly
Thus, the intake of B12 through the diet should be significantly higher, since not all B12 from the diet can actually be absorbed
But one thing that risks undermining their protectiveness is nutritional deficiency, particularly in the elderly
Serum B12 alone can sometimes be misleading MMA levels provide a more functional assessment of whether your body is actually utilizing the B12 available to it