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Dieet met veel olijfolie, fruit en vis beschermt tegen botontkalking
Naast calcium en vitamine D zijn er nog meer voedingsfactoren die de botten sterk helpen houden. Ook het mediterrane dieet, rijk aan olijfolie, vis en fruit, lijkt de botmassa op peil te kunnen houden. Dat schrijven Italiaanse onderzoekers, verbonden aan de Federico II University Medical School of Napoli, in de Journal of Translational Medicine.
Studie
De onderzoekers gaven de botdichtheid van de studiedeelnemers vervolgens een T-score. Bij een T-score tussen de +1 en -1 is die prima in orde, bij een T-score tussen de -1 en -2.5 is er sprake van osteopenie, een voorstadium van osteoporose. Bij T-scores onder de -2.5 is er sprake van osteoporose.
Resultaten
Vooral de consumptie van extra virgine olive oil [EVOO], vis en fruit hingen samen met een relatief hoge botdichtheid.
Mechanisme
"The protective role of the Mediterranean diet against several diseases, such as cardiovascular, neoplastic, neurodegenerative and other chronic diseases is now well defined", schrijven de onderzoekers. "One of the most accredited hypothesis for this association suggests that the protective effects of the Mediterranean diet are mediated by the anti-inflammatory properties of beneficial compounds, like polyphenols, [BMC Med. 2014 May 13;12:77.] that are largely present in the Mediterranean foods such as vegetables and fruits."
"In particular, extra virgin olive oil is one of components of the Mediterranean diet and represents the main edible fat. Its increased consumption is reflected in the high monounsaturated to saturated fatty acid and has been found to be associated with a reduced prevalence of risk factors for major chronic inflammatory diseases included osteoporosis." [Clin Nutr. 2017 Jan 13. pii: S0261-5614(17)30006-7.] [Int J Food Sci Nutr. 2014 Nov;65(7):834-40.]
"Adherence to the Mediterranean diet has been associated with higher bone mass density and has been shown to prevent bone disease." [Am J Clin Nutr. 2010;92(5):1189-96.] [Nutr Hosp. 2015 Jun 1;31(6):2523-32.] [Am J Clin Nutr. 2002;76:245-52.] [Nutr Hosp. 2014 May 1;29(5):989-96.]
Conclusie
"We are aware that the results reported here are preliminary. Large-scale studies are required to clarify the real effect of the Mediterranean diet and of its individual components on bone health and on osteoporosis' prevention."
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