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However many of these symptoms are general and can result from a variety of medical conditions other than vitamin B12 deficiency

Hemoglobin formation inside the red blood cells is supported by Vitamin b12

Patients with Pernicious Anemia: If you have this condition, which prevents the absorption of Vitamin B12, we can guide you on the necessity and benefits of B12 injections

Similarly, food may also interfere with the effects of ipamorelin on GH synthesis

PMID: 41476424

Even considering all of these factors you need to understand that checking vitamin B12 levels in the serum still isnt the best way to evaluate for B12 deficiency