As such, you need to think of eating meat, fish, shellfish, eggs and dairy products (cheese, yoghurt, milk) to meet your bodys vitamin B12 needs
Think of it like a carefully calibrated experiment
In addition to limited absorption via the IF, the intake of high-dose supplements leads to passive diffusion, i.e., the vitamin can freely enter the bloodstream without IF binding and receptor uptake
Standard Maintenance Dose The usual dose for Vitamin B12 injections is 1,000 mcg every month
Common side effects tend to be mild and transient
Vegetarians and vegans may need to take an over-the-counter B12 supplement to ensure they're getting enough, but people with vitamin B12 absorption issues may require prescription B12 injections