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Frequently Asked Questions About B12 Injections Can I take a supplement instead
Do the Injections Hurt
[139] [140] The work required the effort of 91 postdoctoral fellows (mostly at Harvard) and 12 PhD students (at ETH Zurich) from 19 nations
Some symptoms of a B12 deficiency include: Feelings of fatigue Anxiety or nervousness Weakness Shortness of breath Tingling sensation in the digits Diarrhea and numbness, among other things These are just some of the common symptoms
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