A diet rich in fruits, vegetables and whole grains, as well as low in sugar, sodium and processed meat, could contribute to promoting healthy cell aging in women, according to a new study published in the American Journal of Epidemiology  "The key The key to success is that a healthy diet can help us maintain healthy cells and prevent certain chronic diseases, "said lead author Cindy Leung, Assistant Professor of Nutrition Science at the University of Michigan's School of Public Health. "The focus should be on improving the overall quality of your diet, rather than highlighting individual foods or nutrients."
In the study, researchers used telomere length to measure cell aging.
Telomeres are DNA-protein structures on the ends of chromosomes that promote stability and protect DNA. Age is the strongest predictor of telomere length ̵
However, recent studies have shown that telomeres can also be shortened due to behavioral, environmental and psychological factors. Shorter telomeres have been associated with increased risk of heart disease, type 2 diabetes, and some cancers.
Leung and his colleagues studied the diet of a nationwide representative sample of nearly 5,000 healthy adults and assessed how well they could score on four evidence-based diet quality indicators, including the Mediterranean diet, the DASH diet and two commonly used measures for the quality of the diet Nutrition developed by the US Department of Agriculture and Harvard TH (19659002) In women, the higher values for each of the indices were significantly associated with a longer telomere length.
"We were surprised that the results were consistent regardless of the diet quality index we used," Leung said. "All four diets emphasize the consumption of a lot of fruits, vegetables, whole grains and vegetable protein, and limiting the consumption of sugar, sodium and red, as well as processed meat." Overall, the results suggest that compliance with these guidelines is Longer telomere associated length and reduces the risk of a serious chronic illness. "
Co-author Elissa Epel, a professor of psychiatry at the University of California, San Francisco, said:" The commonality of all healthy dietary patterns is that they are antioxidant and anti-anti-inflammatory diets. They create a biochemical environment that is favorable for telomeres. "
In men, the findings were in the same direction, but not statistically significant.
" We have seen some gender differences in previous studies on diet and telomere, "Leung said." In our study and in previous studies Men tend to have lower levels of nutritional quality than women. Men also had higher intake of sugary drinks and processed meats, both of which were associated with shorter telomeres in previous studies.
"It is possible that not all foods affect telomere length evenly and you need higher levels of protective food Negate the harmful effects of others, but further research is needed to further explore this."
Source: www. sciencedaily.com