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This suggests it may act through broader signaling pathways , not just local tissue stimulation

B12 injections can help with fatigue, weight loss, brain fog, symptoms of depression, and more

Through the spinal cord, the brain communicates with all other body systems, including the endocrine system, which regulates body functions such as stress and mood via hormone secretion, and the immune system, which defends the body from pathogenic infection and promotes healing

Intravenous B12 Administration For those with severe vitamin B12 deficiency, getting B12 through an IV is a quick and effective way to treat it

That depends on your goals, medical history, and risk tolerance