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Injections have better bioavailability than oral supplements as they bypass the digestive system completely, providing a direct supply of B12 into the bloodstream to fuel your body
Normal Range of Vitamin B12 Test Results The normal range for vitamin B12 levels can vary slightly depending on the laboratory and the method used for testing
That's the question
Hirschfeld RMA
The frequency of B12 shots depends on your individual needs and health goals
Your hands, legs, and feet are also viable options, but you shouldnt inject into your neck or groin
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