b12 injection vertigo Common & Rare Side Effects of Vitamin Injections B12 Injection Client Forms |

And because anywhere from 1 to 5 mg can be stored, a deficiency that develops from inadequate intake or absorption can take months to years to develop 4

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For example, if your supplement happens to be 10 g, then cutting it in half and taking the resulting 5 g supplement twice a day (at least 4 hours apart) will meet the EFSA recommendations

Early signs include fatigue and weakness, whilst neurological symptoms may appear later if deficiency remains untreated

B12 injections deliver the vitamin directly into the bloodstream, ensuring maximum absorption and immediate effects, whereas oral supplements must pass through the digestive system, which can result in lower absorption rates and slower onset of action