vitamin b12 nasal spray vs injection NAD Sprays Injections Vitamin B12 Sprays vs Tablets

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[1] If you experience persistent or concerning symptoms after starting B12 supplements, particularly skin changes or gastrointestinal issues, it is advisable to discuss these with your GP rather than assuming they are directly caused by vitamin excess

Typically, individuals who benefit the most from B12 vitamin injections are those experiencing symptoms of B12 deficiency, which can include chronic fatigue, weakness, mood changes, memory issues, or tingling in the hands and feet