• Study: Women on a Mediterranean diet had a key biological marker for slower aging

  • Mediterranean diets have also been linked to lower cardiovascular problems

  • Next scientists want to see if one particular food had a bigger impact

  • They also hope to study the same diet in men




(CNN) -- Eating a Mediterranean diet may be your key to living longer. That's according to a new study led by Immaculata De Vivo, associate professor at Brigham and Women's Hospital in Boston and Harvard Medical School.


The diet involves eating items off a menu that is rich in vegetables, fruits, nuts, beans and peas, unrefined grains, olive oil and fish. It keeps dairy, meat and saturated fats to a minimum. And you can have a glass of red wine with dinner without cheating.









The Mediterranean diet is easy to find in the grocery store, contains nutrients that are known to enhance longevity and has other health benefits that are backed by peer-reviewed, scientific studies. Broccoli makes the list because it's one of nature's most nutrient-dense foods, with only 30 calories per cup. That means you get a ton of hunger-curbing fiber and polyphenols -- antioxidants that detoxify cell-damaging chemicals in your body -- with each serving. The Mediterranean diet is easy to find in the grocery store, contains nutrients that are known to enhance longevity and has other health benefits that are backed by peer-reviewed, scientific studies. Broccoli makes the list because it's one of nature's most nutrient-dense foods, with only 30 calories per cup. That means you get a ton of hunger-curbing fiber and polyphenols -- antioxidants that detoxify cell-damaging chemicals in your body -- with each serving.



Doctors suggest using olive oil rather than butter to make your meals. A Spanish study found a Mediterranean diet supplemented with extra-virgin olive oil reduced the incidence of major cardiovascular events among patients with a history of heart disease.Doctors suggest using olive oil rather than butter to make your meals. A Spanish study found a Mediterranean diet supplemented with extra-virgin olive oil reduced the incidence of major cardiovascular events among patients with a history of heart disease.



Quinoa is the popular whole-grain du jour because it also contains a good dose of protein to help build muscle. Yet including any type of whole grain in your diet -- from barley to brown rice -- will aid in weight loss by filling you up for fewer calories. Quinoa is the popular whole-grain du jour because it also contains a good dose of protein to help build muscle. Yet including any type of whole grain in your diet -- from barley to brown rice -- will aid in weight loss by filling you up for fewer calories.



Blueberries are often singled out as a kind of superfood because studies have shown they aid in everything from fighting cancer to lowering cholesterol. But all berries, including raspberries, strawberries and blackberries, contain antioxidants and phytonutrients. Worried about the price of fresh fruit? Experts say the frozen kind is just fine. Blueberries are often singled out as a kind of superfood because studies have shown they aid in everything from fighting cancer to lowering cholesterol. But all berries, including raspberries, strawberries and blackberries, contain antioxidants and phytonutrients. Worried about the price of fresh fruit? Experts say the frozen kind is just fine.



Many dieters shy away from nuts because of their high calorie and fat count. But studies show that eating a handful several times a week can prevent heart disease and ultimately help you shed pounds since they fill you up and stop you from snacking on other things. Almonds, in particular, contain lots of monounsaturated fats and fiber. (Healthy swap: Replace peanut butter with almond butter.)Many dieters shy away from nuts because of their high calorie and fat count. But studies show that eating a handful several times a week can prevent heart disease and ultimately help you shed pounds since they fill you up and stop you from snacking on other things. Almonds, in particular, contain lots of monounsaturated fats and fiber. (Healthy swap: Replace peanut butter with almond butter.)



Salmon is also a good source of lean protein. With this diet doctors suggest eating fish at least two times a week. Salmon provides a high dose of omega-3 fatty acids, which studies show significantly lower the risk of heart disease. Omega-3 fatty acids fight back by reducing inflammation and slowing the rate of plaque buildup in blood vessels. Salmon is also a good source of lean protein. With this diet doctors suggest eating fish at least two times a week. Salmon provides a high dose of omega-3 fatty acids, which studies show significantly lower the risk of heart disease. Omega-3 fatty acids fight back by reducing inflammation and slowing the rate of plaque buildup in blood vessels.



Beans, beans, the magical fruit; the more you eat, the more ... you lose weight. Black, kidney, white and garbanzo beans (also known as chickpeas) are good for fiber and protein. They fill you up and provide muscle-building material without any of the fat that meat can add to your meal. Beans, beans, the magical fruit; the more you eat, the more ... you lose weight. Black, kidney, white and garbanzo beans (also known as chickpeas) are good for fiber and protein. They fill you up and provide muscle-building material without any of the fat that meat can add to your meal.



Eating a breakfast high in protein is a good way to keep hunger at bay throughout the day. Eggs are full of choline, a nutrient that helps block fat from being absorbed in the liver. Choline may also help in preventing memory loss. Eating a breakfast high in protein is a good way to keep hunger at bay throughout the day. Eggs are full of choline, a nutrient that helps block fat from being absorbed in the liver. Choline may also help in preventing memory loss.



Spinach is a great source of iron, which is a key component in red blood cells that fuel our muscles with oxygen for energy. But researchers in Sweden identified another way in which these greens might keep you charged: Compounds found in spinach actually increase the efficiency of our mitochondria, the energy-producing factories inside our cells. That means eating a cup of cooked spinach a day may give you more lasting power on the elliptical machine (or in your daily sprint to catch the bus).Spinach is a great source of iron, which is a key component in red blood cells that fuel our muscles with oxygen for energy. But researchers in Sweden identified another way in which these greens might keep you charged: Compounds found in spinach actually increase the efficiency of our mitochondria, the energy-producing factories inside our cells. That means eating a cup of cooked spinach a day may give you more lasting power on the elliptical machine (or in your daily sprint to catch the bus).



Walnuts are packed with tryptophan, an amino acid your body needs to create the feel-great chemical serotonin. (In fact, Spanish researchers found that walnut eaters have higher levels of this natural mood-regulator.) Another perk: "They're digested slowly," says Dr. David Katz, director of the Yale Prevention Research Center. "This contributes to mood stability and can help you tolerate stress."Walnuts are packed with tryptophan, an amino acid your body needs to create the feel-great chemical serotonin. (In fact, Spanish researchers found that walnut eaters have higher levels of this natural mood-regulator.) Another perk: "They're digested slowly," says Dr. David Katz, director of the Yale Prevention Research Center. "This contributes to mood stability and can help you tolerate stress."



Asparagus is one of the best veggie sources of folate, a B vitamin that could help keep you out of a mental slump. "Folate is important for the synthesis of the neurotransmitters dopamine, serotonin and norepinephrine," says Dr. David Mischoulon, associate professor of psychiatry at Harvard Medical School. All of these are crucial for mood.Asparagus is one of the best veggie sources of folate, a B vitamin that could help keep you out of a mental slump. "Folate is important for the synthesis of the neurotransmitters dopamine, serotonin and norepinephrine," says Dr. David Mischoulon, associate professor of psychiatry at Harvard Medical School. All of these are crucial for mood.



It's not a requirement to drink it on this diet, but if you do drink alcohol, drinking red wine in moderate amounts can be good for your health. Moderation means one drink for women and two for men by the way. Studies show red wine can help protect against heart disease.It's not a requirement to drink it on this diet, but if you do drink alcohol, drinking red wine in moderate amounts can be good for your health. Moderation means one drink for women and two for men by the way. Studies show red wine can help protect against heart disease.




A Mediterranean diet may be key to long life

A Mediterranean diet may be key to long life

A Mediterranean diet may be key to long life

A Mediterranean diet may be key to long life

A Mediterranean diet may be key to long life

A Mediterranean diet may be key to long life

A Mediterranean diet may be key to long life

A Mediterranean diet may be key to long life

A Mediterranean diet may be key to long life

A Mediterranean diet may be key to long life

A Mediterranean diet may be key to long life

A Mediterranean diet may be key to long life






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Delicious Mediterranean diet foodsDelicious Mediterranean diet foods



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The diet has been consistently linked with health benefits that includes helping you manage your weight, and it can lower your risk for chronic issues such as cardiovascular disease.


This new research looks at data from 4,676 healthy middle-aged women involved in the Nurses' Health Study, an ongoing study tracking the health of more than 120,000 U.S. nurses since 1976.


It found women who ate a Mediterranean diet had longer telomeres.


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Telomeres are part of your chromosomes, the thread-like structures that house your DNA. At the end of these chromosomes are telomeres, a kind of protective "cap" that keeps the structure from unraveling. It thereby protects your genetic information.





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Even in healthy people, telomeres shorten with age. Shorter telomeres are associated with aging, lower life expectancy and age-related diseases such as artherosclerosis, certain cancers and liver disease.


Scientists have noticed some lifestyle choices such as smoking, being overweight or obese and drinking a lot of sugar sweetened drinks can prematurely shorten a person's telomeres.


Scientists believe oxidative stress and inflammation can also shorten them.


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Fruits, vegetables, olive oils and nuts -- the key components of a Mediterranean diet -- have well-known antioxidant and anti-inflammatory effects. The team of U.S. researchers led by De Vivo therefore wanted to see whether the women who stuck with this diet had longer telomeres.


"This is the largest population-based study addressing the association between Mediterranean diet adherence and telomere length in healthy, middle aged women," they write. The study included completed detailed food questionnaires and blood tests to measure telomere length.





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Each participant had a calculated diet score ranging from 0 to 9 points; a higher score signifies a closer resemblance to the Mediterranean diet. Each one point change in diet score corresponded an average of 1.5 years of telomere aging.


Telomere shortening is irreversible but healthy "lifestyle choices can help prevent accelerated shortening," says De Vivo.


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This study's results provide "some insight into the underlying physiologic mechanism behind this association," indicating that greater adherence to this diet is significantly associated with longer telomeres, she says. Because of the antioxidant and anti-inflammatory effects of the Mediterranean diet, following this diet "could balance out the 'bad effects' of smoking and obesity," De Vivo says.


These findings further support "the health benefits of greater adherence to the Mediterranean diet for reduction of overall mortality, increased longevity and reduced incidence of chronic diseases, especially major cardiovascular diseases."


None of the individual dietary components was associated with telomere length. Researchers suggest that means the whole diet is an important element, rather than one item being a kind of superfood.


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Dr. Peter Nilsson, a professor of Clinical Cardiovascular Research at Lund University in Sweden, who wrote an accompanying editorial, suggests that the variation in telomere length and dietary patterns may also be because of genetic background factors.


While promising, Nilsson believes that future studies "should take into account the possibility of interactions between genes, diet and sex."


With these results, De Vivo and her research team hope in the future to figure out which components of the Mediterranean diet may be having a bigger impact on telomere length.


Next they also hope to study the same thing in men.



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