the mediterranean diet, rich in fruits, vegetables, fish, olive oil, nuts and whole grains, has long been considered one of the best diets for the heart. But new research suggests its health benefits are mostly reserved for the wealthy and more educated people.
60% lower heart risk
For this study, a team of Italian researchers reviewed the diets, income and education of nearly 19,000 men and women. They found that the Mediterranean diet was associated with about 60% lower risk of heart disease and stroke in those with higher incomes and more education. Benefits that are absolutely not identical for those who have fewer resources, even if they follow the same diet.
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Scientists have therefore sought the origin of these differences. At first, they admitted that no smoking, the practice of a physical activity and regular medical follow-up are more frequent among wealthy people. But they also discovered that having a better income made it possible to opt for the healthiest foods of the Mediterranean diet: more fish and less meat, more variety in the choice of fruits and vegetables which allows you to benefit from more antioxidants, better quality olive oil…
The cooking modes also differ among study participants. Richer and more educated people are more likely to cook vegetables in a healthier way, which preserves their nutritional value.
This study was published in the International journal of epidemiology.
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