are there different types of b12 injections Should You Take Natural vs. Synthetic B12? Lipo B12 Injections - League
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But it does need to combine with intrinsic factor, a protein made by your stomach, to be absorbed into your body

You can learn more about B12 absorption challenges and treatment options on our site

[1] [3] Some medications, such as chloramphenicol, may interact with B12 therapy

These studies used an older radioisotope dilution method for measuring milk vitamin B-12 concentrations, the validity of which has been questioned (29), as opposed to our chemiluminescence method, so direct comparisons are difficult to make
