Shortness of breath, heart palpitations, and dizziness may arise due to anemia caused by the deficiency
For background and my updated recommendations, see my extended look at vitamin B12 in the related posts below
How does TESAMORELIN benefit patients with HIV-associated lipodystrophy
signif From Selye's and Szabo's Cysteamine-Duodenal Ulcer in Rats to Dopamine in the Stomach: The Stable Gastric Pentadecapeptide BPC 157 and Striated, Smooth, and Heart Muscle
Some controversy remains, however, since a single study by Nakagawa et al
Risks and side effects of B12 shots While B12 shots are generally safe and well-tolerated, there are potential risks and side effects to be aware of