Diabetes requires innovative therapeutic strategies. Natural products, especially algae-derived compounds, show promise. This chapter examines algae-based natural products for diabetes management. Recent developments, mechanisms, and future prospects are discussed. Algae’s diverse bioactive constituents and antidiabetic properties are highlighted, including polysaccharides, polyphenols, and fatty acids known for their potential to improve insulin sensitivity and regulate glucose metabolism. Additionally, the chapter explores how specific algae species, such as Spirulina and Chlorella, exhibit unique mechanisms of action that could complement existing treatments. Challenges and limitations are addressed, such as variability in bioactive compound concentrations, the need for standardized extraction methods, and regulatory hurdles for clinical applications. Recommendations for optimization include advancing biotechnological methods for compound extraction and enhancing bioavailability through novel delivery systems. By fostering collaboration between researchers, clinicians, and industry, we can accelerate the development of effective algae-based therapies and pave the way for new, sustainable approaches to diabetes management.