The study was conducted by researchers at the University of Bergen in Norway, and the results were published in the American academic journal PLOS Medicine. Norwegian researchers created a model for the study to try to discover the impact of different diets on lifespan, namely a Western diet typical of red meat and processed foods versus a vegetarian diet dominated by fruits, vegetables, legumes, and whole grains. and nut diet. The study says that not only can choosing a healthy diet extend your life when you are young, but eating a healthy diet can also extend your life as you get older. Starting at the age of 60, if you eat a healthy diet, women can live 8 years longer, and men may gain almost 9 years. The study said a vegetarian-based diet could benefit even 80-year-olds, with older men and older women living an extra 3.5 years from a healthy diet.