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Many studies have utilized oral, subcutaneous, and intramuscular injections for administration
He maintains an active blog at DrPerlmutter.com and is the author of Brain Wash, Grain Brain, Brain Maker, The Grain Brain Whole Life Plan, The Grain Brain Cookbook, and Raise a Smarter Child by Kindergarten
19(2): 1217 Clement K
A barrier prevents administered vitamin B12 forms from converting directly into active forms in plasma before they reach the tissues [104]
Cai C, Omwancha J, Hsieh CL, Shemshedini L
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