![Serum vitamin B 12 nivåer brukes til å oppdage dens mangel, men de skiller ikke årsakene. | Vitamin b12 deficiency, B12 deficiency, Vitamins Serum vitamin B 12 nivåer brukes til å oppdage dens mangel, men de skiller ikke årsakene. | Vitamin b12 deficiency, B12 deficiency, Vitamins](https://i.pinimg.com/736x/97/b0/85/97b085b1f2fd7a013a07263e4824fbdb.jpg)
Serum vitamin B 12 nivåer brukes til å oppdage dens mangel, men de skiller ikke årsakene. | Vitamin b12 deficiency, B12 deficiency, Vitamins
![Vitamin B12 deficiency symptoms: 8 warning signs of low levels 'inside your mouth' - Sound Health and Lasting Wealth Vitamin B12 deficiency symptoms: 8 warning signs of low levels 'inside your mouth' - Sound Health and Lasting Wealth](https://cdn.images.express.co.uk/img/dynamic/11/750x445/1567747.jpg)
Vitamin B12 deficiency symptoms: 8 warning signs of low levels 'inside your mouth' - Sound Health and Lasting Wealth
![Hydroxocobalamin vitamin B12 molecule. Often given therapeutically in case of B12 deficiency but also to treat cyanide poisoning. Atoms are represente Stock Photo - Alamy Hydroxocobalamin vitamin B12 molecule. Often given therapeutically in case of B12 deficiency but also to treat cyanide poisoning. Atoms are represente Stock Photo - Alamy](https://c8.alamy.com/comp/J3KE60/hydroxocobalamin-vitamin-b12-molecule-often-given-therapeutically-J3KE60.jpg)