Effects of brown alga, Ecklonia cava on glucose and lipid metabolism in C57BL/KsJ-db/db mice, a model of type 2 diabetes mellitus

► We investigated the anti-diabetic effects of Ecklonia cava in db/db mice. ► Dieckol rich extract of E. cava (AG-dieckol) was compared with agent, rosiglitazone. ► AG-dieckol exerts a beneficial effect on hepatic glucose and lipid metabolism.