Reported causes of breast milk jaundice include inhibitors of hepatic UGT1A1 in breast milk (pregnane-3α, 20β-diol, non-esterified fatty acid), increased enterohepatic circulation (β-glucuronidase, epidermal growth factor), genetic polymorphisms (UGT1A1 mutations such as UGT1A1*6 and UGT1A1*28), dehydration, starvation, IL-1β, and α-fetoprotein (97–101, 104–106). The gene discussed is UGT1A1; the disease is Jaundice.