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Patients who typically benefit from vitamin B12 injections include individuals diagnosed with vitamin B12 deficiency, those experiencing difficulties absorbing nutrients through their digestive tract, or patients who follow restrictive dietary patterns, such as strict vegetarians or vegans
Usage Note
What is largely agreed on, however, is that B12 deficiency can reduce energy levels and therefore make it harder to stay active and maintain a healthy weight
22 May 2026 6 min Why do I feel worse after my B12 injection
There is no evidence that timing B12 supplementation around meals or exercise enhances weight loss
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