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What are the signs that indicate a need to adjust vitamin B12 dosing regimens

You should swing the arms repeatedly for about 2 minutes (by watch) and repeat the exercise 3-4 times a day

Last reviewed: June 9, 2026 Last updated: June 9, 2026 Written by: Jay Hastings, CEO of PlexusDx Jay Hastings is the CEO of PlexusDx, a precision health company focused on genetic testing, blood biomarker insights, and personalized wellness recommendations

As far as weight loss goes, vitamin B-12 injections (or vitamin B-12 in general) have no significant effect, according to limited scientific studies