can anyone take b12 injections

https://lookaside.fbsbx.com/lookaside/crawler/media/?media_id=1017985866707648&get_thumbnail=1 Vitamin b12 deficiency can cause several symptoms including, extreme tiredness, lack of energy, mental fog, and changes in mood and balance. Find out more about b12 deficiency and our private vitamin b12 Gut & Digestive Health There’s no performance benefit to staying at 5,000 mcg indefinitely once you’ve normalized Full/Deposit:Full

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