 The marine environment plays a crucial role in sustaining life on earth by providing a vast array of resources such as food, energy, and medicines. Two types of brown seaweed, Dicteota dicotomia and Dicteota facila, were studied to determine their chemical compositions and evaluate their potential applications in treating various diseases. Both algae contain numerous bioactive compounds, including terpenoids and steroids, which can be used to treat a variety of health conditions. Additionally, the methanolic extract of Dicotomath showed strong antibacterial properties, while the dietary potential of Dicteota facila was high due to its ability to inhibit the activity of pancreatic lipase and alpha amylase. Overall, these findings suggest that Dicteota species could potentially be used as a source of natural agents for treating obesity and diabetes. This article was authored by Ana Mardic, Laura Sismek, Nikolai V. Allianovsky, and others.