vitamin b12 injections dosage B12 Injection 3000 mcg CYANOCOBALAMIN INJECTION, USP 30000 mcg/30
Description
Rapid Correction of Deficiency : Injections can quickly fix a B12 deficiency, which is great for those with severe issues

Effectiveness : B12 is absorbed 100% through shots, providing quick relief compared to oral supplements
Early detection makes treatment much more effective

Please suggest me some resolution

The other vegans might have malabsorption issues and are likely a self-selecting population given that people suffering from a nutrient deficiency would be more likely to seek out nutrition counseling

How Are B12 Injections Administered
