Olive Leaf Extract (2011, 2015) & High Cholesterol
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In a preliminary study of volunteers with hypertension received olive leaf extract with 15% oleoeurpein and their diastolic and systolic pressure, blood antioxidant level, nitric oxide and lipid levels in blood plasma were measured. Not only did the researcher notice a reduction in blood pressure, but and other improved biomarkers, but LDL cholesterol (the "bad" cholesterol and triglycerides were lowered which markedly improved the CHO/HLD ratio.
Researchers: C. Cabrera-Vique, M. Navarro-Alarcon, et al, Hypotensive Effect of an Extract of Bioactive Compounds of Olive Leaves: Preliminary Clinical Study, Nutrition Hospitalaria, July, 2015.
In another study researchers found that olive leaf extract lowered LDL and total cholesterol in rats who were fed a high-cholesterol diet. There were two test groups. One group was fed a standard "rat-chow." The other was fed a diet with 2% cholesterol-enriched chow. Both diets continued for eight weeks.
Some rats in each group were fed olive leaf extract at doses of either 50 or 100 mg daily. As a control, other rats were fed an common cholesterol medication.
The blood lipid profile was analyzed after eight weeks. Both total cholesterol and LDL levels were increased in the cholesterol fed animals who did not receive either treatment. For both of the treated groups total and LDL cholesterol levels were reduced.
Researchers: E. Olmez, K. Vural, et al
Published: Olive Leaf Extract Improves the Atherogenic Lipid Profile in Rats Fed a High Cholesterol Diet, Phytotherapy Research, October, 2015.
In a study evaluating the comparative effect of olive leaf extract to a common medication in hypertensive patients, reductions in cholesterol triglycerides were also observed in the group receiving the olive leaf extract.
A four week period with no medication to either group preceded the study period. The treatment period was eight weeks in duration. A dosage of 500 mg two times a day was given over the eight week period to one group, and normal dosage of Captopril to the other group.
Evaluations of blood lipid profile was measured after each four week period and it was found that there was a marked lowering in the triglyceride level in the group receiving the olive leaf extract.
Researchers: E. Sasalit, N. Agus, et al
Published: Olive (Olea europaea) leaf extract effective in patients with stage-1 hypertension: comparison with Captopril, Phytomedicine, February, 2011.