b12 injection leg cramps Vitamin Sites: All You Need to Know Feeling worse after B12 Injection:
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IUCrJ 10 , 678693 (2023)
These reasons, while understandable from a procedural standpoint, can be clinically and emotionally detrimental to a patient with Pernicious Anemia who is symptomatic and in need of treatment

Clear as mud

A chronic iron deficiency will eventually lead to anemia which can cause even more severe complications and possibly even death

These vitamins are found in many foods, but they can also be found in multivitamins, B-complex vitamins, or as individual supplements

The dose needed depends on how severe the deficiency is and the persons health
