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is sublingual b12 as effective as injections Vitamin injection Sublingual Versus Oral B12 -
Description
Vegetarians and vegans, who do not consume animal products, are also considered at risk of B12 deficiency
NNMT's role in cancer biology

Most people tolerate B12 shots well

doi: 10.1210/me.2007-0079

The usual dose is 1000 micrograms (mcg)

Ensuring sufficient intake of vitamin B12 can contribute to improved reproductive outcomes
