According to researchers, two food types can have a big impact on your health - including preventing dementia, reducing risk of dying early and avoiding cancer

According to researchers, two superfoods can help stave off dementia, reduce the risk of an early death and even help prevent cancer. Leafy greens such as spinach, kale, cabbage and lettuce are packed with essential nutrients like vitamin K, lutein and folate, along with a host of beneficial plant flavonoids.