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When injected, B12 is easily absorbed by the body and then utilized in the formation of red blood cells as well as aiding in the maintenance of a healthy nervous and cardiovascular system

While vitamin B12 has the power to lower the risk of heart disease, it is also linked to the fact that individuals with healthy levels of Vitamin B12 are more likely to spend time outdoors and exercise

Oral supplements have to survive your digestive system before reaching your bloodstream, and studies show most vitamins are only 20 to 50% absorbed that way

Respiratory disorder related, including Chronic obstructive pulmonary disease (COPD)