Caper fruit, often referred to simply as caper, has been traditionally used as a natural diabetes treatment, and the first controlled study (as far as I know) on caper’s potential to fight diabetes in humans was published in 2013.
Caper fruit may help type 2 diabetics.
Type 2 diabetics were randomly assigned to consume either caper fruit or placebo 3 times per day for 2 months. By the end of the study, fasting blood sugar and HbA1c were significantly lower in the caper group.33
The dose given was equal to 5 grams per day of dried capers, a realistic amount to consume. The equivalent amount of fresh caper would be 3-4 times higher.
- Huseini HF, Hasani-Rnjbar S, Nayebi N, et al. Capparis spinosa L. (Caper) fruit extract in treatment of type 2 diabetic patients: a randomized double-blind placebo-controlled clinical trial. Complement Ther Med. Oct;21(5):447-452.