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Jeanne Louise Calment lived to the age of 122 years, 164 days, credÂitÂing her longevity to the regÂuÂlar use of olive oil in her diet. Harvard researchers found that adherÂence to a Mediterranean diet, charÂacÂterÂized by high intake of vegÂetaÂbles, olive oil, fruit, and legumes, was sigÂnifÂiÂcantly assoÂciÂated with longer telomÂere length, a bioÂmarker of aging.

Many studÂies have assoÂciÂated the Mediterranean diet with proÂtecÂtion from a numÂber of chronic disÂeases such as heart disÂease and diaÂbetes. Now, Harvard researchers proÂvide addiÂtional eviÂdence that this eatÂing style proÂmotes longevity.
Researchers from the Brigham and Women’s Hospital, a teachÂing hosÂpiÂtal of Harvard Medical School, found that those folÂlowÂing a Mediterranean diet had longer telomÂeres, a bioÂmarker of aging.
See Also:Olive Oil Health Benefits
Telomeres are found at the ends of chroÂmoÂsomes and proÂtect from deteÂriÂoÂraÂtion. Longer telomÂeres have been assoÂciÂated with longer life, while shorter telomÂeres have been assoÂciÂated with decreased life expectancy and increased risk of age-related disÂease, accordÂing to the researchers.
Certain lifestyle charÂacÂterÂisÂtics such as obeÂsity, smokÂing, conÂsumpÂtion of sugar sweetÂened bevÂerÂages as well as oxidaÂtive stress have been assoÂciÂated with shorter telomÂeres.
The findÂings pubÂlished in the British Medical Journal included data from 4,676 women from the Nurses’ Health Study — an ongoÂing study runÂning since 1976 that has been folÂlowÂing over 120,000 nurses from the United States. The parÂticÂiÂpants filled out food freÂquency quesÂtionÂnaires periÂodÂiÂcally (about every 4 years), and had blood tests for meaÂsureÂment of telomÂere length. The Alternate Mediterranean Diet Score was used to assess adherÂence to the diet.
The results showed that greater adherÂence to a Mediterranean diet — charÂacÂterÂized by high intake of vegÂetaÂbles, olive oil, fruit, legumes and less red meat and satÂuÂrated fats — was sigÂnifÂiÂcantly assoÂciÂated with longer telomÂere length.
The researchers noted that oxidaÂtive stress can accelÂerÂate telomÂere weakÂenÂing and the estabÂlished effect of the Mediterranean diet on oxidaÂtive stress may explain its effect on telomÂere length.
The researchers conÂcluded that the results furÂther supÂport the benÂeÂfits of adherÂence to the Mediterranean diet for proÂmotÂing health and longevity.