The invention relates to the field of pharmacology. More specifically, the invention relates to a composition for the treatment of diabetes mellitus and/or the metabolic syndrome. Even more specifically, the invention relates to a herbal composition for treating the same. In one of its embodiments, the invention provides a composition comprising: a) an anti hyperglycaemic agent b) an anti inflammatory agent c) an anti hyperlipidemic agent d) an anti oxidant agent e) a gastro-intestinal agent. In a preferred embodiment, at least one of said agents is derived from a plant.