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Are B12 Vitamin Injections Safe During Pregnancy

Individuals with Poor Absorption: People with low stomach acid, or those who have had certain surgeries (like gastric bypass), may struggle to absorb B12 from food and would benefit from injections

I also could not find any evidence of alcohol inhibiting vitamin B12 absorption

Weight: Being overweight or underweight can disrupt hormonal balance and ovulation

Adding too much diluent reduces dosing precision, while too little creates overly concentrated solutions that are difficult to measure accurately

Initial treatments may require several injections per week, followed by maintenance doses every month