It's not just good for your heart - a recent study shows an increased
intake of olive oil is associated with strengthening of bone formation markers.
A study in the Endocrine Society’s Journal of Clinical Endocrinology
and Metabolism (JCEM) shows consumption of a Mediterranean diet enriched
with olive oil for two years is associated with increased serum osteocalcin
concentrations, suggesting a protective effect on bone.
Oil – not low-fat or nuts
Studies show that the incidence of osteoporosis is lower in the
Mediterranean basin. The traditional Mediterranean diet, rich in fruits and
vegetables, with a high intake of olives and olive oil could be a factor
underlying this difference – but how? According to study leader José Manuel
Fernández-Real, MD, PhD: “This is the first randomised study which demonstrates
that olive oil preserves bone in humans.”
For this study, 127 male test subjects aged 55-80 were randomly assigned
to three intervention groups: Mediterranean diet with mixed nuts, Mediterranean
diet with virgin olive oil, and a low-fat diet. Measurements of blood levels of
osteocalcin, glucose, total cholesterol, HDL-cholesterol and triglycerides were
performed at the beginning and after two year follow-up. Researchers found that
only the Mediterranean diet with olive oil was associated with a significant
increase in the concentrations of total osteocalcin and other bone formation
markers. There were also no significant changes in serum calcium in subjects
taking olive oil whereas serum calcium actually decreased significantly in the
other two groups.
Source :
Nature and Health
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