( Unfortunately, this symptom of B12 deficiency overlaps with symptoms related to diabetic neuropathy nerve damage caused by high blood sugar that can cause pain and numbness in the extremities ( People with diabetes taking metformin are at a higher risk of developing B12 deficiency because this medication can reduce vitamin B12 absorption in the body ( So, a B12 deficiency could be misdiagnosed as peripheral neuropathy in people with diabetes
Sanchez-Gurmaches J, Hung C-M, Guertin DA
The NHS hypokalaemia overview explains why it matters, and clinical references such as StatPearls on B12 deficiency treatment specifically flag monitoring potassium during the early loading phase in people who were severely deficient
Those who opt for the Vitamin B12 injections or IV therapies will experience results faster, within two to three days, due to its quick absorption in the body
But as a good practice, maintain hydration and adequate protein intake
This depends on your individual needs