Healthy diet could pro­mote healthy cel­lu­lar age­ing in women

The Borneo Post - Nature and health - - Diet -

NEW RE­SEARCH has found that eat­ing a healthy diet which fo­cuses on plenty of fruits, veg­eta­bles and whole grains and lim­its sugar, salt, and pro­cessed meats could help pro­mote healthy cel­lu­lar age­ing in women. Con­ducted by the Univer­sity of Michi­gan, Har­vard T.H. Chan School of Pub­lic Health, and the Univer­sity of Cal­i­for­nia, USA, along with Queen’s Univer­sity Belfast, North­ern Ire­land, the new study looked at how diet could im­pact cel­lu­lar age­ing, which can in­crease the risk of chronic dis­eases.

The team an­a­lysed the di­ets of 4,758 healthy adults aged 20 to 65 years to see how well they scored on four ev­i­dence-based diet qual­ity indices, in­clud­ing the Mediter­ranean diet, the Di­etary Ap­proaches to Stop­ping Hy­per­ten­sion (DASH) diet and two com­monly used mea­sures of diet qual­ity de­vel­oped by the US Depart­ment of Agri­cul­ture and the Har­vard T.H. Chan School of Pub­lic Health.

To mea­sure cel­lu­lar ag­ing the re­searchers looked at telom­ere length. Telom­eres are the pro­tein caps on the ends of hu­man chro­mo­somes which pro­tect DNA and are mark­ers of health. Age is the strong­est pre­dic­tor of telom­ere length – telom­eres shorten in length dur­ing each cell cy­cle – but it is un­known which diet pat­tern is most strongly re­lated to telom­ere length.

Af­ter tak­ing into ac­count so­cio-de­mo­graphic and health fac­tors, and com­par­ing the top and bot­tom quin­tiles of the diet scores, the re­searchers found that for women, high scores for each of the four di­ets were sig­nif­i­cantly as­so­ci­ated with longer telom­ere length. How­ever, in men, although the find­ings showed the same trend, it was not sta­tis­ti­cally sig­nif­i­cant.

“We were sur­prised that the find­ings were con­sis­tent re­gard­less of the diet qual­ity in­dex we used,” said lead au­thor Cindy Leung, “All four di­ets em­pha­sise eat­ing plenty of fruits, veg­eta­bles, whole grains and plant-based pro­tein and lim­it­ing con­sump­tion of sugar, sodium and red and pro­cessed meat.”

“The key take­away is that fol­low­ing a healthy diet can help us main­tain healthy cells and avoid cer­tain chronic dis­eases,” added Leung. “Em­pha­sis should be placed on im­prov­ing the over­all qual­ity of your diet rather than em­pha­siz­ing in­di­vid­ual foods or nu­tri­ents.” “Over­all, the find­ings sug­gest that fol­low­ing these guide­lines is as­so­ci­ated with longer telom­ere length and re­duces the risk of ma­jor chronic dis­ease.”

The re­searchers also com­mented that fur­ther in­ves­ti­ga­tion is now needed to un­der­stand why the same as­so­ci­a­tions were not ob­served in men, with Leung adding that, “We have seen some gen­der dif­fer­ences in pre­vi­ous nu­tri­tion and telom­ere stud­ies.

In our study, as well as in pre­vi­ous stud­ies, men tended to have lower diet qual­ity scores than women. Men also had higher in­takes of sug­ary bev­er­ages and pro­cessed meats, both of which have been as­so­ci­ated with shorter telom­eres in prior stud­ies. The find­ings can be found pub­lished on­line in the Amer­i­can Jour­nal of Epi­demi­ol­ogy. –Re­laxnews

Newspapers in English

Newspapers from Malaysia

© PressReader. All rights reserved.