B12 deficiency
Lacking essential vitamin
B12 deficiency is a shortage of vitamin B12, an essential nutrient for nerve function and red blood cell production.
Symptoms include fatigue, weakness, numbness, and cognitive difficulties.
Common causes are poor absorption (often from aging or digestive conditions), strict vegetarian diets, or certain medications.
Left untreated, it can cause permanent nerve damage: Her doctor caught the B12 deficiency early.
- blood testDiagnostic fluid analysis
- vegan dietMeals without animal products
- plant basedDerived from vegetation
- red meatMammal flesh for eating
- pernicious anemiaIntrinsic factor deficiency disease
folate · malabsorption · fatigue · weakness · energy levels · fortified foods · tingling · celiac disease · numbness · pins and needles · nerve damage · memory loss · Crohn's disease · alcohol abuse · pale skin · blood cells · megaloblastic anemia · stomach lining
- Anemiahemoglobin, low hemoglobin, low iron, pernicious anemia, sickle cell
- deficiencieslack, shortage, insufficiency, shortfall, inadequacy
- malnutritionmalnutrition, malnourished, undernourished, undernourishment, starvation
- hematologyblood smear, bone marrow, bone marrow biopsy, leukemia, lymphoma
- Anemiassickle cell anemia, pernicious anemia, megaloblastic anemia, thalassemia, sideroblastic anemia
- B vitamin deficiencypellagra, beriberi, Korsakoff syndrome
deficiency, deficient, deficiencies, deficit, deficits, defect, defects, defective, defection