INS and type 1 diabetes mellitus: Mean ± SEM exogenous insulin levels in the milk of mothers with type 1 diabetes were 12.22 ± 1.34 mU/L for mother T1-01, 31.54 ± 4.95 mU/L for mother T1-02, and 17.86 ± 4.34 mU/L for mother T1-03.