Some of the serious side effects of Vitamin B12 include serous allergic reaction, narrowing or blocking of blood vessels, thrombocytosis (a disorder where your body produces too many platelets), low potassium levels in body, pulmonary edema (a condition where there is excess fluid in the lungs) and congestive heart failure
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Vitamin B12 injection: These quick, effective injections provide an immediate dose of B12, an essential vitamin that supports energy production, enhances mood, and promotes better sleep
Its abundant in animal-based foods, including beef, salmon, and dairy products