can vitamin b12 injections have side effects B12: Overdose and Are There Any Side Effects
Description
The most common side effect is some soreness at the injection site, and you might notice your urine turning bright yellow (thats just the excess vitamins, particularly riboflavin, being excreted)

Vitamin B12 (cobalamin) supports red blood cell production, nerve function, and DNA synthesis

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19 Key Vitamins and MineralsMinerals and vitamins are key nutrients your body needs to thrive

Symptoms often include fatigue, lightheadedness, pale skin, shortness of breath, and cognitive fog

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