INS and diabetic ketoacidosis: To investigate whether Phylloseptin‐PBu could stimulate insulin release, we treated rat pancreatic beta BRIN‐BD11 cells with a concentration range from 10−7 to 10−12 mol/L, along with a 5.6 mmol/L glucose group, which mimics the glucose level in physiological conditions, a 16.7 mmol/L glucose group, which is a stimulatory glucose level (suggesting diabetic ketoacidosis), and a positive alanine group.