Two common forms include cyanocobalamin and hydroxocobalamin
Vitamin B12 Deficiency and Management During Pregnancy In addition to anaemia, symptoms of vitamin B12 deficiency may include: Fatigue Breathlessness Nervous system symptoms such as numbness, tingling or poor balance Poor concentration or memory Paleness Mood changes, including low mood, anxiety or disrupted sleep Some women are more susceptible to vitamin B12 deficiency than others
A study in a respected medical journal found that the Vitamin B12 type chosen can greatly affect treatment success
This page was reviewed for medical accuracy
Back English (US) Espaol Franais (France) () Portugus (Brasil) Italiano Deutsch Sign Up Log In Messenger Facebook Lite Video Meta Pay Meta Store Meta Quest Ray-Ban Meta Meta AI Instagram Threads Privacy Policy Consumer Health Privacy Privacy Center About Create ad Create Page Developers Careers Cookies Ad choices Terms Help Contact Uploading & Non-Users Settings Activity log Meta 2026
Leading medical sources, including The BMJ and Harvards Nutrition Source, emphasize that elevated B12 levels alone do not indicate toxicity or adverse effects
