You will learn the exact mechanisms that make intranasal delivery work, the bioavailability comparisons that determine whether this method suits your research goals, step-by-step reconstitution instructions specific to nasal spray preparation, detailed dosing protocols based on current research, and the safety considerations that should inform your decision
Moreover, alcoholics may experience reduced intestinal absorption of vitamin B 12 (2), and individuals with acquired immunodeficiency syndrome (AIDS) appear to be at increased risk of deficiency, possibly related to a failure of the IF-B 12 receptor to take up the IF-B 12 complex (3)
No organ toxicity, mutagenicity, or teratogenic effects were observed
alternate supplement formulations of vitamin B 12 , such as methylcobalamin and hydroxycobalamin, have been suggested for this patient population
Having reviewed the research extensively, I find the multi-pathway approach particularly compelling