cMIND AI Web Tool Usability Study (Hong Kong)

This study is testing a new web-based tool that uses artificial intelligence (AI) to help older adults in Hong Kong check how healthy their Cantonese-style meals are for brain health. The tool is based on the cMIND diet, a Chinese-adapted version of a known healthy eating pattern that may support memory and thinking skills. Participants will use the web app to take photos of their usual meals for at least 10 days over two weeks. The AI will automatically identify ingredients and give a score showing how well the meal follows the cMIND diet. The study will also ask participants to complete a short questionnaire and a brief interview to find out how easy and useful the tool is for older adults. The purpose of this small study is to see whether the AI tool is user-friendly and acceptable for older people. Results will help improve the tool for future use to support healthy ageing and brain health.

Inclusion Criteria: * Aged 60 years or above * Community-dwelling in Hong Kong * Able to provide informed consent * Basic ability to use a smartphone or tablet (with assistance if needed) * Consuming Cantonese-style meals as the primary dietary pattern for ≥ 5 days per week for the past 3 months or longer) Exclusion Criteria: * Severe visual or motor impairment that prevents taking meal photos even with assistance * Self-reported diagnosis of dementia or Alzheimer's disease, or other psychiatric/medical conditions that would interfere with participation or valid outcome assessment * Current participation in other interventional nutrition or technology studies