Pernicious anemia is a chronic condition characterized by the inability to absorb vitamin B12, leading to deficiency and related complications. Other issues like problems after stomach surgery or diseases like Crohns also might need Vitamin B12 injections
Vetting: All the products on our list have been vetted to ensure they meet Healthlines medical and business standards
Low levels can cause tiredness, breathlessness, pale skin and mouth ulcers
Despite its importance, B12 deficiency is remarkably common particularly among vegetarians, older adults, individuals with digestive conditions, and anyone whose body has difficulty absorbing this vitamin from food or oral supplements
While symptoms like fatigue and brain fog resolve relatively quickly, nerve-related issues (such as numbness or tingling) may require six weeks to six months for full recovery
Many people notice increased energy and focus within a day or two