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after gastric bypass how often should b12 injections be administered Shots at Home: How, Where & to Inject Yourself B12 Injections for Weight Loss:
Description
While the body doesn't actually create its own vitamin B12, it stores it in the liver for up to five years

I was feeling extremely tired and run down for years

USA 99 , 6671 (2002)

B12 is essential for metabolism, but taking extra when your levels are already normal does not speed it up or burn more fat
B12 Injections: The Direct Delivery Method Vitamin B12 injections deliver the nutrient directly into muscle tissue, bypassing the digestive system entirely
