Therefore, regular supplementation of a B-Complex vitamin including Vitamin B-12 may help prevent high levels of homocysteine and thus prevent coronary heart disease and stroke. Click here to learn more about B-Complex benefits.
Source: Long term treatment with metformin in patients with type 2 diabetes and risk of vitamin B-12 deficiency: randomised placebo controlled trial
Many, if not most prescription medications, have the side effect of causing vitamin and/or mineral deficiencies which can potentially lead to other unintended complications.