The present invention relates to a synergistic composition which comprises (a) phlorizin, and (b) at least one further defined inhibitor of the enzyme lactase-phlorizin hydrolase. In particular, the present invention relates to such a composition for the treatment and/or prophylaxis of a hyperglycemic disease such as obesity, diabetes or a secondary disease associated with diabetes. The invention further relates to the use of such a composition for preparing a pharmaceutical composition, a dietary foodstuff and/or a food supplement. The invention further relates to pharmaceutical compositions, dietetic foods and food supplements which comprise a composition according to the present invention.
