Seaweed is an abundant commodity in Indonesia which has health benefits for health. The study purpose is to provide describe the nutritional potential of Ulva lactuca, Sargassum polycystum and Eucheuma cottonii, as a reference in the functional food development. This research is a narrative review using 5 steps. The selection includes database and keyword filtering, article collection, inclusion criteria determination, and a review process of the selected 13 publications. Eucheuma cottonii contains dietary fiber, PUFA, carrageenan, vitamin C, higher Na, and stronger antioxidant activity. In conclusion, seaweed has more potential to be a more acceptable developed product that can improve the nutrition of the community. [ABSTRACT FROM AUTHOR]