Fitness, weight loss, dieting or a mixture of these and more- how can one make sure to live till a 100 years? Or at least have a reasonably long life? A study conducted amongst people over the age of 90 in certain Italian villages. And apart from questions on migration, traumatic events, and their beliefs, they were asked about their diet. What kind of a diet do we need to follow to be able to live a healthy life and that too till the age of 100? We spoke to experts to get some tips for you.