Its designed for adults who are conscious about their health and prefer products without unnecessary additives
Active malignancy warrants avoidance as discussed above
Where serum B12 results are borderline or do not fit the clinical picture, further tests such as active B12 (holotranscobalamin), methylmalonic acid, or homocysteine may be helpful
On the active site thiol of gamma-glutamylcysteine synthetase: relationships to catalysis, inhibition, and regulation
Ingraham HA, Chen RP, Mangalam HJ, Elshotz HP, Flynn SE, Lin CR, et al
Technologies for the synthesis of mRNA-encoding libraries and discovery of bioactive natural product-inspired non-traditional macrocyclic peptides