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
Birn H, Zhai X, Holm J, Hansen SI, Jacobsen C, Christensen EI, Moestrup SK
If your body has trouble absorbing B12 through the digestive tract, injections are especially helpful because they deliver the vitamin directly into your bloodstreambypassing the gut entirely
Its pretty rare for someone to take too much of a vitamin through their diet, Haggerty says. 6 vitamins and minerals you can overdose on Here are six common vitamins and minerals that people can overconsume
Nicotinamide N-methyltransferase: metabolic regulator and emerging therapeutic target (2024 review)
London: National Institute for Health and Care Excellence (NICE)