Although a direct pharmacological link between retatrutide and B12 deficiency has not been confirmed, mechanistic parallels with approved GLP-1 medicines combined with the risk of prolonged dietary restriction make proactive nutritional monitoring a prudent and clinically responsible approach
The overall risk appears to be very low, but the theoretical concern necessitates appropriate patient selection and informed consent
Patient Selection Matrix The answer depends on individual patient priorities
GSNO levels in cells are regulated by the enzyme GSNO reductase (GSNOR), which in turn controls the thiol levels of the cells (Locato et al
Archives of dermatology , 140 (7), 827-835
Furthermore, in New Zealand obese mice, the GLP-1-estradiol conjugate protects against carbohydrate-induced hyperglycemia (250)