does b12 injection have iron What Is What's all the Buzz About Vitamin B12 Shots? Antiaemia-Enhancing Dextran Iron Vitamin B12
Description
Can J Biochem 57:5664

This bispecific Ab showed enhanced anti-tumor activity, reduced risk of immunogenicity and lacked endogenous biotin interference compared to the SA-biotin system
PubMed, Thompson, Susan D., et al

As we age, though, our bodies can begin to lose the ability to absorb vitamins effectively