after b12 injection side effects Vitamin are there any side effects

As such, it is difficult to work out if a B12 deficiency and joint pain are because of correlation or causation

Practically, that means a few things to watch

The good news is that any side effects tend to be mild and temporary, with some people experiencing no side effects at all

People who have undergone some sort of trauma to the intestines including a gastric bypass or intestinal surgery can be susceptible to vitamin B12 deficiencies since they may have less cells present to produce the protein to which the B12 can attach, resulting in a decreased ability to absorb B12 into the bloodstream

Lewitt MS, Hilding A, Brismar K et al (2010) IGF-binding protein 1 and abdominal obesity in the development of type 2 diabetes in women