Experiments showed that oral administration of the preparation significantly increased grip strength, muscle mass, and muscle fiber diameter in aged mice, effectively alleviating aging-related muscle atrophy, and providing a new direction for anti-aging research on sarcopenia
With their lower absorption rate and frequent dosing, oral supplements can slow the process
Aminoglycosides, tetracyclines, and certain other antibiotics may alter gut microbiota composition, potentially affecting the small amount of vitamin B12 that is produced by colonic bacteria, though this is generally not clinically significant for patients receiving injectable B12 supplementation
These unregulated versions may carry safety risks and impurities, and reduce their effectiveness
B12 shots may help you get more red blood cells, reduce symptoms like weakness and fatigue, and give enhanced benefits compared to oral vitamins