The study involved more than 7000 people who were at risk of heart disease, and after nearly five years, the was a clear and constant benefit from the diet that involves a mix of fruit and vegetables, fruit, olive oil, legumes, nuts, fish, with small amounts of dairy and meat.
Links from mental health to the diet have also been made, and it has been connected to reducing the risk of depression. Further studies by Dr Sabate will also conclude if people who currently have depression, experience any benefit by going onto the diet.
Pictures: Liam Nethery
Video: Alyssa Martin