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Yu, Danxia et al
Difficulty concentrating and impaired memory: These may indicate a Vitamin B12 deficiency, which can also lead to mental health issues like depression and behavioral changes
Absorption is slower and steadier, and many patients find SC less painful
Your body uses a form of vitamin B3 called nicotinamide to build NAD+ , the energy currency that powers mitochondria and many cell-repair processes
There are a few reasons why it might be a better idea to avoid OTC supplements
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