The present invention provides an inhibitor of the production of an advanced glycation end product, which contains, as active ingredients, one or more sugar alcohols selected from maltitol and sorbitol. The present invention also provides a medicament for the prevention and/or treatment of lifestyle diseases, particularly diabetes or diabetic complications, which contains, as active ingredients, one or more sugar alcohols selected from maltitol and sorbitol. The medicament causes less adverse drug reactions.
