Unlike fat-soluble vitamins (A, D, E, K), B12 doesnt accumulate to toxic levels from dietary or supplement intake in most circumstances
Vitamin B12 injections may not be suitable for people who have a history of: allergic reaction or sensitivity to cobalt or vitamin B12 Leber disease kidney disease or impaired kidney function Also, vitamin B12 injections may not be necessary for people without a deficiency
If youre looking for a natural boost to your metabolism and energy levels, its time to consider the potential of B12 injections
A deficiency of vitamin B12 can also cause shortness of breath or heart palpitations, as well as gastrointestinal symptoms including constipation, diarrhea, appetite loss, or gas
[3] These include poor growth, apathy, having no desire for food, and developmental regression