Capparis spinosa L. (Caper) fruit extract in treatment of type 2 diabetic patients: a randomized double-blind placebo-controlled clinical trial.

Objectives: Capparis spinosa L. (Caper) fruit is traditionally used as an anti-hyperglycemic food by Iranian diabetic patients. But yet, no controlled human study has determined its efficacy in treatment of hyperglycemia in type 2 diabetic patients.