calcium/phosporus/magnesium exchange disorders (rickets, osteopathy, halisteresis, pregnancy, etc)
This can show up as symptoms such as delayed growth and development (failure to thrive), regression in neuromotor skills (such as losing the ability to roll over or grasp objects), failure to maintain eye contact (even in an infant who previous could do so), general muscle weakness, lethargy, excessive sleepiness, feeding difficulties, and even brain shrinkage
An injection allows those nutrients to enter the bloodstream right away, which helps the body make use of them without depending on digestion or absorption through the stomach
Release it slowly down the vials inner wall to limit foaming
What causes vitamin B12 deficiency