Video education may boost diabetes Self-Care

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * Aged between 18 and 65 years (Mumcu \& İnkaya, 2022). * Able to read, write, understand, and speak Turkish. * Diagnosed with type 2 diabetes for at least one year (Onyia et al., 2023; Shahshahani et al., 2023). * Receiving oral antidiabetic agents and/or insulin therapy (Mikhael et al., 2019). * Having an HbA1c level \>7% in at least one measurement within the last 3 months (Hu et al., 2023; Lee et al., 2020; Asmat et al., 2023; TEMD, 2024). * Volunteering to participate in the study. * Owning a personal device (e.g., smartphone) capable of playing interactive videos. * Having the ability to use a smartphone capable of playing interactive videos, which will be assessed by observing the participant using an interactive video -not related to the study intervention. * Owning a smartphone with an active internet data plan. * Being able to attend scheduled follow-up visits at the frequency required for study measurements. * Having a body mass index (BMI) ≥18.5 kg/m² (Lee et al., 2022). * Not following a vegan or vegetarian diet (Dening et al., 2023). * Having hemoglobin levels within normal ranges (women: 12-16 g/dL; men: 14-18 g/dL) (Billett, 1990). Exclusion Criteria: * Having previously received video-based diabetes education. * Currently using or having previously used a video-based tool or program supporting type 2 diabetes management. * Having severe visual, auditory, cognitive impairments, or physical disabilities that may interfere with participation. * Being hospitalized as an inpatient during the intervention period. * Being pregnant, planning pregnancy within the next 6 months, or becoming pregnant during the study. * Breastfeeding during the study period (due to potential dietary restrictions). * Using any weight-loss medication or supportive pharmacological agent. * Having a diagnosis of sickle cell anemia or being diagnosed during the study period (TEMD, 2024, p.18; Eyth et al., 2025). * Receiving hemodialysis, having experienced recent bleeding or blood transfusion, or receiving erythropoietin therapy (TEMD, 2024, p.18; Eyth et al., 2025). * Having a diagnosed psychiatric disorder (e.g., major depressive disorder, bipolar disorder, schizophrenia). * Participating in another diabetes-related intervention or program during the study period. * Using an insulin pump (Lee et al., 2022). * Managing diabetes with nutrition therapy alone without pharmacological treatment. * Following a diet prescribed and supervised by a dietitian due to another medical condition or surgical procedure.