why have b12 injections Curious about shots? Benefits of Vitamin B12 Injections
Description
This deficiency is more common among people who have had gastric surgeries or pernicious anemia

Yes, sometimes

Briefing Document: Pharmacy Compounding Advisory Committee (PCAC) Meeting

This same enzyme was subsequently identified by two other laboratories from database searches of proteins containing the conserved G X S X G pentapeptide motif and alpha/beta-hydrolase fold, and was named adipose triglyceride lipase (ATGL) (145) or iPLA2 (53, 145)

So the 100% figure is an assumption from how systemic administration generally behaves, not a measured number for this compound
