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[12] A 2013 study published in The Journal of Nutrition looked at the efficacy of B12 supplementation on levels in 100 older adults and found that 500 mcg for 8 weeks normalized vitamin B12 levels in 90% of participants

Supplement Expiration Dates Supplements can take many different forms, like vitamins, minerals, herbs, botanical compounds and probiotics

Water aids in nutrient transportation supports metabolism, and helps flush out toxins that can leave you sluggish

Author contributions SL: Conceptualization, Data curation, Formal Analysis, Funding acquisition, Investigation, Methodology, Validation, Visualization, Writingoriginal draft, Writingreview and editing

Hormonal considerations, pregnancy planning, and potentially different response profiles warrant attention