This book describes the potential therapeutic benefits of algae in the management of diabetes. The work mainly focuses on the anti-diabetic properties of different types of algae, both marine and freshwater. The chapters present various bioactive compounds that exhibit anti-diabetic effects, finding their mechanisms of action and potential applications in diabetes management. These compounds may include polysaccharides, polyphenols, pigments etc. which have been identified for their ability to regulate glucose metabolism, improve the level of insulin sensitivity, and mitigate complications associated with the diabetes. The book aims to provide a foundation in the field of algae for diabetes. By consolidating the latest knowledge and highlighting the gaps in current understanding, it helps the fractionation of particular compounds, characterization, and clinical applications. Algae, with their rich biochemical resources and potential health benefits, represent an exciting avenue for exploration in the quest for novel anti-diabetic agents. The work contributes to the scientific analysis to explore the unexploited potential of algae in the area of diabetes management.