does b12 injections work how long before vitamin how do you feel after a b12 injection How Quickly B12 Shot Work? Does It Boost Your Energy FAST: Why
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For example, athletes with high metabolic demands, vegans who consume no dietary B12, or individuals with chronic malabsorption issues like Crohns disease may find they feel their best with a bi-weekly (every two weeks) injection

Injectable vitamins can also lead to a more rapid and efficient uptake of the vitamins by the body, as they are absorbed directly into the bloodstream and bypass the digestive system

It can also help to prevent and manage some medical conditions, like diabetes

This is where further workup becomes important
