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Reproductive Biomedicine Online Journal 5

For prevention and treatment of vitamin B12 deficiency, cyanocobalamin in chewable, sublingual, or liquid forms (rather than in a multivitamin) is best under most circumstances
PMID: 38044024 6 A Framework to Guide Defining an Upper Threshold of Crystalline Vitamin B12 in Foods and Food Supplements

Preserve testicular activity Helps counteract testicular shutdown commonly seen with TRT alone
