Olive leaf extract shown to lower blood pressure

A study of identical twins with borderline hypertension has shown that olive leaf extract is effective at lowering blood pressure.

A total of 40 people took part in two studies led by Tania Perrinjaquet-Moccetti. The first compared identical twins, one of which who took 500 mg of olive leaf extract each day whilst their sibling acted as the control group. The second compared the effect of taking 500 mg of olive leaf extract with that of taking 1,000 mg per day.
 
Results showed that participants taking 1,000 mg of olive leaf extract experienced significant drops in blood pressure and LDL cholesterol levels. Blood pressure also dropped in participants taking 500 mg of olive leaf extract, however the reduction was not deemed to be statistically significant.

Perrinjaquet-Moccetti T, Busjahn A, Schmidlin C, Schmidt A, Bradl B, Aydogan C.Food supplementation with an olive (Olea europaea L.) leaf extract reduces blood pressure in borderline hypertensive monozygotic twins. Phytotherapy Research. Published Online: Aug 27 2008. DOI: 10.1002/ptr.2455