Findings have shown that insulin adherence tends to be suboptimal among AYAs with T1D when compared to both younger children and adults.15,30 AYAs with T1D tend to reduce or omit insulin doses intentionally or unintentionally.31–33 They may also unintentionally increase the dose.34,35 Other insulin adherence-related activities which AYAs with T1D often find to be challenging include carbohydrate (CHO) counting and dose adjustment.36,37 Likewise, studies have demonstrated that regular SMBG38–40 and CGM26,29,38 are underutilized in AYAs. Here, INS is linked to type 1 diabetes mellitus.