why b12 injections instead of pills vs. Oral Supplements: Which Is Better? B12 Injections vs Oral Supplements:

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Research has examined their combined interaction in models focused on collagen synthesis, wound response, and structural tissue recovery

Common injection sites: For Intramuscular (IM): Upper arm (deltoid) Outer thigh (vastus lateralis) often the easiest self-injection site Upper outer gluteal muscle usually requires assistance For Subcutaneous (SQ): Abdomen (at least 12 inches away from the navel) Outer thigh Back of the upper arm What are the side effects

[2] It is also added to many breakfast cereals through food fortification and is available in dietary supplement and pharmaceutical forms