The world's need for food grains obtained from non-traditional sources among the various food sources available in the world is increasing day by day. Accordingly, in countries with geographical and climatic diversity, awareness about food grains and the nutrients, medicinal components, etc. obtained from them is also increasing in recent times. In this context; Seaweeds have emerged as a prominent functional food due to their diverse nutritional composition and potential health benefits. Rich in essential nutrients like proteins, dietary fibers, vitamins, and minerals, as well as bioactive compounds such as polyphenols, carotenoids, and polysaccharides, seaweeds offer significant contributions to human health. The present article reviews current trends in consumable and therapeutic seaweeds which highlight their role in preventing chronic diseases, including cardiovascular disorders, diabetes, obesity, and certain cancers. The unique bioactive properties of seaweeds, particularly their antioxidant, anti-inflammatory, and antimicrobial activities, are being explored for improving gut health, immune modulation, and metabolic regulation. As consumer interest in plant-based and sustainable foods grows, seaweeds are increasingly incorporated into various food products, ranging from snacks to nutritional supplements. Overall, seaweeds present a promising avenue for developing nutritionally rich, health-promoting functional foods in the global market. The present review article deals with the various avenues of utilizing seaweeds as a functional human food putting a step ahead towards sustainable goals.