Research consistently shows an inverse association between serum B12 and serum MMA levels, although researchers havent found specific cutoff points for determining B12 deficiency by way of serum B12 or MMA levels using cross-sectional data (Bailey, 2011, Bailey, 2013)
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Who really benefits B12 shots make the biggest difference for people who are genuinely low, including: People with a diagnosed B12 deficiency Vegans and vegetarians, since B12 comes mainly from animal foods Older adults, who absorb B12 less efficiently People with pernicious anemia or digestive conditions that block absorption How to use B12 shots the right way If you decide B12 shots fit your plan, treat them as one piece of a bigger picture: Build the plan on food
Thus, medical staff and workers can use it for any of the commonly accepted indications, such as administering BCG and other vaccines, performing the Mantoux tuberculin test, and drug testing for possible allergic reactions, with the exception of using it for insulin injection