Admittedly, almost everyone wants to live longer. To achieve this desire, choosing a healthier lifestyle is key, such as regular exercise, smoking and alcohol. In addition, eating habits are also closely related to the length of life.
Recently, researchers at the University of Bergen in Norway analyzed hundreds of data and found that if the eating habits were changed from the previous typical "Western diet" to the "optimized diet", the life expectancy of middle-aged people would be extended by 6 to 7 years. Among young people, life expectancy can be extended by about 10 years.
The typical Western diet refers to eating large amounts of processed foods, red meat, high-fat dairy products, high-sugar foods, and vegetables and fruits with low intakes. An optimized diet, on the other hand, refers to eating more legumes (beans, peas and lentils), whole grains (oats, barley and brown rice) and nuts, and eating less red and processed meats.
Considering that it is unlikely that people will completely change their eating habits, the researchers also calculated a pattern between a Western diet and an optimized diet, which they call a "viable diet."
The researchers say a 20-year-old male or female who permanently switches from a typical Western dietary pattern to an optimized dietary pattern will reap the greatest benefits, with an average lifespan of more than 10 years. If a viable dietary pattern is adopted, it can be extended for 7 years.
For both men and women, 80-year-olds will receive the least benefit, with people who adopt an optimized dietary pattern living longer by about 3 years, while those with a "viable" dietary pattern will live less than two years longer.
All the mechanisms by which diet prolongs life are not fully understood. But the researchers found that an optimized diet included many foods rich in antioxidants. Some studies of human cells have shown that these substances may slow or prevent cell damage.
The research paper, titled "Estimating impact of food choices on life expectancy: A modeling study," has been published in Public Science Library Medicine.
Forward-looking Economist APP Information Group
Original text: https://journals.plos.org/plosmedicine/article?id=10.1371/journal.pmed.1003889
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