Published research has linked hyperhomocysteinaemia to increased risk of venous thromboembolism, cardiovascular disease, and stroke (10)
Health Risks from Excessive Intake Vitamin B12 is a water-soluble vitamin, meaning excess amounts are typically excreted in urine, and toxicity is considered very low
[DOI] [PMC free article] [PubMed] [Google Scholar] 58.DiStefano MT, Danai LV, Roth Flach RJ, Chawla A, Pedersen DJ, Guilherme A, et al
It can also result in pernicious anemia which occurs when your body does not have enough vitamin B12 to produce the required amount of red blood cells
There is no doubt that vitamin b12 shots can be extremely helpful in improving the health of many people when they are lacking optimal levels for various reasons