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Heres how specific conditions can impact the use of B12 shots: Heart Disease: While B12 is essential for overall health, excessive amounts of vitamin B12 in the body may sometimes cause an increase in certain heart disease risk markers, particularly for individuals with pre-existing cardiovascular conditions

But like any medical treatment, they come with both benefits and risks

B12 is water-soluble, so your body uses what it needs and passes much of the extra through your urine

Beta-blockers slow metabolism by 5 to 10 percent in some individuals, though the effect varies by specific medication

An early research published at PubMed Central suggests that vitamin B12 supplementation can potentially reduce the risk of developing depression starting at the adolescent age