Mediterranean diet could cut heart disease risk by nearly half

By Nathan Gray

- Last updated on GMT

Switching to a Mediterranean-style diet could cut heart disease risk almost 50% according to a new study that followed more than 2,500 Greek adults for ten years.
Switching to a Mediterranean-style diet could cut heart disease risk almost 50% according to a new study that followed more than 2,500 Greek adults for ten years.

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People following a Mediterranean-style diet could slash their risk of heart disease by up to 47%, according to a new ten-year study.

Findings from the Greek study suggest that adherence to the Mediterranean diet can have a more protective effect on heart disease risk than taking part in physical activity – showing that adults who closely followed the diet were 47% less likely to develop heart disease over a 10-year period compared to similar adults who did not closely follow the diet.

The ten-year population study is the first to analyse the effect of the Mediterranean-style diet - which commonly emphasises the consumption fresh fruits and vegetables, whole grains, beans, nuts, fish, olive oil and even a glass of red wine – in a general population.

"Our study shows that the Mediterranean diet is a beneficial intervention for all types of people -- in both genders, in all age groups, and in both healthy people and those with health conditions,"​ said Ekavi Georgousopoulou, a Ph.D. candidate at Harokopio University in Athens – who noted that most previous studies have focused on middle-aged people.

"Because the Mediterranean diet is based on food groups that are quite common or easy to find, people around the world could easily adopt this dietary pattern and help protect themselves against heart disease with very little cost,"​ she added.

"It also reveals that the Mediterranean diet has direct benefits for heart health, in addition to its indirect benefits in managing diabetes, hypertension and inflammation.”

General population study

The study, due to be presented at the American College of Cardiology's Annual Scientific Session​, is based on data from a representative sample of more than 2,500 Greek adults, ages 18 to 89 - who provided researchers with their health information each year from 2001 to 2012. Participants also completed in-depth surveys about their medical records, lifestyle and dietary habits at the start of the study, after five years and after 10 years.

According to the findings, women tended to follow the Mediterranean diet more closely than men.

Despite the fact that Greece is the cradle of the Mediterranean diet, urbanization has led many Greeks to adopt a more Western diet over the past four decades, said Georgousopoulou.

Overall, nearly 20% of the men and 12% of the women who participated in the study developed or died from heart disease during the ten-year follow up.

Georgousopoulou and her colleagues scored participants' diets on a scale from 1 to 55 based on their self-reported frequency and level of intake for 11 food groups.

Those who scored in the top-third in terms of adherence to the Mediterranean diet, indicating they closely followed the diet, were 47% less likely to develop heart disease over the 10-year follow-up period compared to participants who scored in the bottom-third.

Indeed, the team found that each one-point increase in the dietary score was associated with a 3% drop in heart disease risk.

This difference was independent of other heart disease risk factors including age, gender, family history, education level, body mass index, smoking habits, hypertension, diabetes and high cholesterol, all of which the researchers adjusted for in their analysis.

Source: To be presented at the American College of Cardiology's 64th Annual Scientific Session
"Adherence to Mediterranean is the Most Important Protector Against the Development of Fatal and Non-Fatal Cardiovascular Event: 10-Year Follow-up (2002-12) Of the Attica Study"
Author: Ekavi Georgousopoulou, et al

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Great news

Posted by K Jones,

Fiber, polyphenols, and olive oil.

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What do they die of instead?

Posted by D J Adams,

I do not question the validity of such claims as this, but am always worried that such research never seems to be accompanied by any statistics as to what diseases they suffered from instead. Is their life expectancy increased by an amount that such statistics would appear to forecast?

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