Walnuts 'are the healthiest nuts'

"Previous research has shown that regular consumption of small amounts of nuts can reduce the risk of heart disease, some types of cancer, type two diabetes and other health problems."

"Walnuts are the healthiest of all nuts because of their high levels of antioxidants and should be eaten more as part of a healthy diet, say US scientists."

Link:  http://www.bbc.co.uk/news/health-12865291