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Patients whose labs improved but fatigue, sleep disruption, or focus issues did not meaningfully change
Vitamin B12 supplements If your B12 levels are low but not severe, your doctor will suggest you take vitamin B12 supplements
Samir Sinha, who was not involved in the research, said B12 shots can't provide "a big boost." "Getting B12 shouldn't instantly make you feel great or more powerful," he said
If you take B12 supplements, multivitamins, or receive B12 injections, the high result is almost always a reflection of your intake and is clinically insignificant
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