Olive oil promotes bone growth!
Previous research has shown associations between olive oil and osteoporosis, but they were essentially experimental, the study by PREDIMED is the first study that examined the effect of olive oil on osteocalcin circulation in humans.
For this study, 127 men aged 55 to 80 were randomly selected from one of the PREDIMED study centers. The study consisted of a long-term nutritional intervention to evaluate the effectiveness of the Mediterranean diet in the prevention of cardiovascular diseases.
Elderly subjects were diagnosed with type 2 diabetes or at least three cardiovascular risk factors, namely, hypertension, dyslipidemia, or a family history of premature cardiovascular disease. The participants were randomly assigned to one of three intervention groups: Mediterranean diet with mixed nuts, Mediterranean diet with extra virgin olive oil, or a low-fat diet.
For the study, measures were taken for osteocalcin, glucose, total cholesterol, HDL-cholesterol and triglycerides, at the beginning of the procedure and after two years. Participants who followed a Mediterranean diet with olive oil, experienced a significant increase in total osteocalcin concentrations and other markers of bone formation and they also had no significant change in serum calcium, while in the other two groups (Mediterranean diet with a mixture of nuts and the low-fat diet) serum calcium decreased significantly.
According to the researchers, studies have shown that the incidence of osteoporosis is lower in the Mediterranean region and the Mediterranean diet rich in olive oil, perhaps one of the reasons.
sources: Journal of Clinical Endocrinology and Metabolism PREDIMED
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