Olive leaf extracts have also been shown to be potent thyroid hormone boosters. This increase in thyroid levels then leads to increased energy expenditure and may help combat obesity, diabetes, and metabolic disorder. (38). In ahead-to-head study done in diabetic rats comparing either olive leaf extract or glyburide (Diabeta(®)), a common glucose-lowering drug, it was shown that the anti-diabetic effects of olive leaf extract proved superior to those of the drug.
