Researchers have revealed that a new ‘Green Mediterranean’ diet plan may slash dementia risk and reduce ‘brain ageing’. The Mediterranean diet comes doctor and scientist-approved, thanks to its staples being fruit, vegetables and wholegrains, with various studies showing that following the plan can help to keep cognitive ability sharp. But now, researchers have revealed that a ‘tweaked’ version of this plan - that’s packed full of green tea, walnuts, and a special green smoothie - could prove