location of b12 injection Best Vitamin Sites: Where to Inject B12 · PA Relief B12 Injections | Vitamin B12

Methylmalonic acid and homocysteine are more sensitive markers of functional deficiency

So the capsule-vs-sub q question for most peptides isnt a preference its forced by molecular weight

Benefits of B12 Shots While Breastfeeding B12 shots are a highly effective way to boost vitamin B12 levels quickly, especially for mothers who may have difficulty absorbing the nutrient from food or oral supplements

The liver stores are a bit irrelevant to someone who has PA or a B12 absorption problem though because the mechanism that is used to release them relies on the same mechanism that is used to absorb most dietary B12 so accessing any stores is at best very inefficient

Specific allergic manifestations consisting of swelling of eyelids, lips, pharynx and larynx, urticaria, asthma, and bronchospasm, sometimes with a concomitant fall in blood pressure