vitamin b12 oral vs injection Injections Supplements: Which Is Better? Oral vitamin B12 versus intramuscular

In mild cases, low levels of vitamin B12 can cause fatigue and anemia, while more serious deficiencies can lead to serious neurological and heart impairments

More energy Has my b levels on point Perfect for energy and overall feeling great

Vitamin injections at Sacramento Naturopathic Medical Center are given via a small subcutaneous (under-the-skin) or intramuscular injection

The administration is non-invasive and requires no injections, medical devices, or surgical tools

So, a 1 mg dose of B12 is the same as 1000 mcg

Which form (and whether either is right for you) is decided with your provider based on your goals and health history not something to guess at from a forum