Vitamin B12 Injections However, some people have trouble absorbing vitamin B12 from their food, leading to deficiencies that can cause headaches, pale skin, fatigue, and even eventually infertility
I think this has really helped with mood levels and sleep
Side Effects: Cyanocobalamin is generally well-tolerated, but some patients might experience side effects, including
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Individuals with known B12 deficiencies, or those prone to a potential deficiency due to their lifestyle, must supplement vitamin B12
Occasional tingling, they never mentioned to anyone