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Mediterranean Diet: Harvard Study Shows Women Live Longer

Mediterranean Diet Harvard Study Women Live Longer

A groundbreaking study from Harvard, recently published in JAMA Network Open, reveals that the Mediterranean diet may significantly extend women’s lifespans.

Women who closely followed this heart-healthy, plant-focused diet experienced a 23% lower risk of death from any cause. This new finding adds to the extensive list of health benefits already associated with the Mediterranean diet, underscoring its potential to improve longevity and overall well-being.

Study Overview

The study tracked data from 25,315 healthy women who participated in the Women’s Health Study over a 25-year period from April 1993 to January 1996.

The average age of the participants was 54. Researchers analyzed blood samples, biomarker measurements, and self-reported dietary information collected from June 2018 to November 2023.

Key Findings

The Harvard researchers attributed the reduced mortality risk to improved cardiometabolic risk factors.

They noted that previous studies also linked the Mediterranean diet to increased longevity. For example, a meta-analysis of 21 cohort studies involving 883,878 participants found that higher adherence to the Mediterranean diet was associated with a 21% reduced risk of cardiovascular disease (CVD) mortality.

Components of the Mediterranean Diet

The Mediterranean diet mimics the traditional eating habits of countries bordering the Mediterranean Sea, such as Italy and Greece. 

The diet emphasizes plant-based foods, including:

  • Whole vegetables
  • Whole grains
  • Fruits
  • Nuts and seeds
  • Herbs and spices

Olive oil serves as the primary source of added fat, while fish, poultry, and dairy are consumed in moderation. The diet limits red meat, sweets, butter, and sugary drinks.

Health Benefits

According to the Cleveland Clinic, the Mediterranean diet’s health benefits stem from its limitation of saturated fats, refined carbohydrates (including sugars), and sodium.

It promotes healthy unsaturated fats, fiber, and antioxidants. Dr. Marc Siegel, a clinical professor of medicine at NYU Langone Medical Center, noted that the diet’s high content of monounsaturated fats and antioxidants decreases inflammation and supports heart health.

Expert Opinions

Erin Palinski-Wade, a registered dietitian, highlighted the diet’s impact on reducing visceral fat, or belly fat, which can worsen insulin resistance and increase the risk of type 2 diabetes, cancer, and heart disease. By adopting the Mediterranean diet, it is possible to improve insulin sensitivity and reduce disease risk.

Palinski-Wade also mentioned the diet’s richness in antioxidants and phytonutrients, which help reduce inflammation and lower the risk of future diseases like type 2 diabetes and cardiovascular disease.

Additionally, the diet positively impacts blood sugar balance, mood, and sleep, further contributing to reduced stress levels and improved overall quality of life.

Study Limitations

The researchers acknowledged some limitations in their study. The participants were predominantly middle-aged, well-educated, non-Hispanic white women, which may limit the generalizability of the findings.

The dietary intake was self-reported, which could lead to some misrepresentation. Additionally, the researchers only had access to blood samples provided at the study’s baseline, without follow-up samples.

Despite these limitations, the study’s large scale and long follow-up period provide significant insights into the long-term benefits of the Mediterranean diet.

Wrap up 

The Harvard study offers compelling evidence that following the Mediterranean diet can significantly lower the risk of death for women, mainly from cancer and cardiovascular disease. 

Medical professionals continue to acknowledge the health benefits of the Mediterranean diet as it gains popularity worldwide. Public health policies should promote the dietary attributes of the Mediterranean diet and discourage unhealthy eating habits.

For women seeking to improve their longevity, adopting the Mediterranean diet may be a decisive step towards a healthier, longer life.

 

The information is taken from various journals and recent research.


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