Basal β-hydroxybutyrate levels were higher after the RCD (260 μmol/L (IQR 137–282) vs. 123 μmol/L (IQR 78.9–205) after RCD vs. SCD, respectively, median difference 53.9 μmol/L, 95% CI 2.70–147 μmol/L, Fig. 5C-D) but were suppressed to undetectable levels during insulin infusion. Here, INS is linked to Schnyder corneal dystrophy.