This study documents the diversity and utilization of local food plants on Breueh Island, Aceh, Indonesia, to understand their role in supporting household food security. Data were obtained from 120 respondents using semi-structured interviews, field observation, and participatory identification. A total of 67 species from 33 families were recorded, with fruits, leaves, and seeds being the most commonly used plant parts. Spices/seasonings, vegetables, fruits, and beverage ingredients represented the dominant categories of use. Most plant resources originated from home gardens, markets, and cultivated fields, indicating a shift toward easily accessible and domesticated sources rather than forest-based collection. The findings highlight the importance of local biodiversity and traditional ecological knowledge in sustaining daily food needs and maintaining cultural practices. This research provides baseline information essential for future conservation and community-based food-system planning