b12 injections deltoid muscle Best Vitamin Injection Sites Vitamin B12 Injection Deltoid Site

As B12 helps make red blood cells, a lack of vitamin B12 can cause anemia

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This makes injectable supplementation a reasonable approach for anyone with confirmed or suspected absorption problems, though it does not prove the combination provides benefits beyond separate administration

Karakasheva TA, Waldron TJ, Eruslanov E, Kim SB, Lee JS, OBrien S, et al

Methionine: an amino acid that helps prevent fatigue and works as an anti-oxidant to neutralize toxins in the body

Blood tests including serum B12 levels can diagnose deficiency, and in some cases, additional tests such as intrinsic factor antibodies (to identify pernicious anaemia) may be appropriate