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Vitamin B12 deficiency occurs when your body doesnt receive or absorb enough vitamin B12 from your diet to function effectively
In the middle of the day, people may feel exhausted, distracted, and unreasonably foggy-headed
Individuals with significant kidney impairment might be advised to use alternative forms to cyanocobalamin as a precautionary measure, though evidence of clinical harm at standard supplementation doses is lacking
Pregnancy or old age
Many suppliers stop at purity alone
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