The beta cell of the pancreas (in the Langerhans islets) integrates and secretes insulin, a peptide hormone. The body builds glucose in the blood, supplying it to fat, liver, and skeletal muscle cells for carbohydrate, fat, and protein metabolism. More than millions of people die from diabetes mellitus (DM) each year worldwide. It is a leading effect of cognitive state and destruction. Drugs among increasing numbers on the market fail to provide a complete and effective treatment for DM due to their side effects, such as nausea, vomiting, and gastrointestinal irritation. A novel drug delivery system (NDDS) can be defined as a new  technique for developing inventive formulations, procedures, and techniques to safely deliver pharmaceutical compounds in the body and achieve their desired pharmacological effects. New pharmaceutical forms are formulated to have smaller particle sizes, higher permeability parameters, and selective site targeting. NDDSs (Nasal Delivery Systems) serve as carriers, maintaining the drug concentration within the therapeutic window for extended periods to ensure controlled and sustained release. The aim is to minimize undesired effect and improve the therapeutic effect. In this paper, we aimed to assess how well people with diabetes who visit our clinic understand various topics related to preventing and treating diabetes-related issues.