what size needle do you use for b12 injection Best Injections (Size & Gauge) · PA Relief what size needle do i

Ease the plunger down over a count of 5 to 10 seconds

peak blood concentrations of the vitamin are not achieved for 6 to 8 hours after an oral dose

Clinically evident deficiency

How Common Is Vitamin B12 Deficiency in the United States

The diagnosis of vitamin B12 deficiency typically relies on low total B12 levels and elevated concentrations of homocysteine (Hcy), as well as levels of transcobalamin-bound B12 (holoTC) and methylmalonic acid (MMA), which serve as functional indicators of cobalamin insufficiency (Carmel and Sarrai, 2006)

The ingredients are usually safe in recommended amounts but avoid high doses unless your doctor advises otherwise