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In high enough doses, this can be dangerous and potentially fatal [6]
Sleep is divided into rapid-eye-movement sleep and several stages of non-rapid-eye-movement sleep
Cyanocobalamin : This is the of vitamin B synthetic produced form 12 commonly found in supplements and fortified foods
Zinc deficiency can be treated with oral zinc supplementation
Without ongoing B12 replacement, deficiency and symptoms will typically recur within months to years of discontinuation
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