A deficiency can occur for several reasons, such as pernicious anemia (a condition where the body cannot absorb vitamin B12 from the diet), certain medical conditions (e.g., Crohn's disease, celiac disease), surgical removal of part of the stomach or intestine, or strict vegetarian/vegan diets if not adequately supplemented
Once you know the concentration in mg/mL, a dose in mg becomes a volume in mL by simple division, and that volume becomes insulin-syringe units by multiplying by 100 (because a U-100 syringe is marked so that 1 mL = 100 units)
Heteroatom co-doping, defect engineering, and hybridisation with photosensitisers or metallic components enhance light absorption, charge separation, and ROS or heat generation, directly influencing treatment efficacy and tissue penetration
Functional Medicine Many conditions result from vitamin deficiencies such as B-12, and injections help your body directly absorb these essential nutrients