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In many mild or borderline cases, especially in vegetarians, oral Vitamin B12 supplements can be just as effective and are completely safe
Insert the needle at a 45-90 degree angle (depending on body composition) with a quick, dart-like motion
Older adults, vegans and vegetarians, and people on long-term acid-reducing medication often run on the lower end of optimal range without obvious symptoms
It is the most bioavailable form of B12, and also the most active, working mostly in our brains, nervous system, and liver (Lindstrand, 1964)
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