after b12 injection side effects Vitamin Vitamin B12 Side Effects: Risks

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

I always protect them as much as possible from light (in boxes in a dark cupboard)

This helps reduce any chance of feeling lightheaded

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

These vitamins may not be as potent