Do Vitamin B12 Shots Work?

Vitamin B12 is essential to our nervous system, aides in our metabolism, cell reproduction and helps us stay alert and awake. It's easy to get the nutrient in our diets just by eating animal products like dairy or meat, but if you're a vegetarian or have an inability to absorb B12, then you might have a deficiency. That's where vitamin B12 injections come into play.