In NeuroSci, Nova Fellows Alan Logan and Jeff Greeson, Scholar Susan Prescott, and coauthors revisit the link between glucose metabolism and criminal behavior.
The authors review evidence showing people in the criminal justice system have significantly higher rates of diabetes and metabolic problems. Studies found violent offenders experience reactive hypoglycemia after meals, and even healthy adults show increased aggressive impulses when blood sugar drops. The gut microbiome emerges as key—bacteria influence glucose regulation and brain function through multiple pathways, with new technologies identifying microbial signatures that predict individual responses.
The article suggest metabolic interventions could support criminal justice reform, moving from punishment-focused approaches to addressing biological factors.





