INS and diabetes mellitus: The potential benefit of the nutritional intake of vitamin D and ω-t PUFAs in the context of the honeymoon period of type 1 diabetes is further valorized because it has been shown to slow down the decline in pancreatic C-peptide secretion one year after clinical onset, whereas intensive diabetes management, including automated insulin delivery, even when achieving excellent glucose control, did not affect the rate of progressive decline of C-peptide [39].