US$ 27.18
oral vs injected b12 Vitamin Injections vs. Supplements: Which Works Best? Vitamin B12 Injections Vs Oral
Description
Instead of relying on digestion, injections bypass the gastrointestinal tract, making them especially beneficial for people who struggle with absorption due to IBS, celiac disease, or other digestive issues

[DOI] [PMC free article] [PubMed] [Google Scholar] 155.Debussche L., Couder M., Thibaut D., Cameron B., Crouzet J., Blanche F

For most people the honest answer is: often at first, then much less often once your stores are refilled

Competing interest The authors declare that they have no competing interests
