does oral b12 work as well as injections Are Vitamin Shots Right for You? B12 Shots vs. IV Infusions:
Description
As with all compounds in this category, findings remain within the scope of controlled laboratory research

Blood cells sticking together is what leads to a blood clot which can cause a stroke.

A research guide to its benefits, dosage, and side effects

Oral Supplements Work Well For: People with healthy digestive function using B12 supplementation preventatively rather than correctively often achieve adequate results with oral forms

Its not known to have any major side effects
