What is the Nordic diet? (And why should you start eating it?)

You are probably familiar with the Mediterranean diet, which emphasizes fruits, vegetables, nuts, whole grains and olive oil. The diet has been associated with a lower incidence of cardiovascular disease, cancer and Type 2 diabetes, as well as a reduced risk of Alzheimer's and Parkinson's diseases. But there's another diet that has its roots overseas, and it appears to offer similar health benefits.