Changing your diet could add up to 13 years to your life, study says

By: Sandee La Motte writing for CNN

Changing what you eat could add up to 13 years to your life, according to a newly published study, especially if you start when you are young.

The study created a model of what might happen to a man or woman's longevity if they replaced a "typical Western diet" focused on red meat and processed foods with an "optimized diet" focused on eating less red and processed meat and more fruits and vegetables, legumes, whole grains and nuts.

If a woman began eating optimally at age 20, she could increase her lifespan by just over 10 years, according to the study published Tuesday in the journal PLOS Medicine. A man eating the healthier diet from age 20 could add 13 years to his life.

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