It has always been known that nuts are healthy for you. In fact, in 2003, the FDA allowed nut manufacturers to make a health claim on their labels saying:
“Scientific evidence suggests but does not prove that eating 1.5 ounces per day of most nuts [such as name of specific nut] as part of a diet low in saturated fat and cholesterol may reduce the risk of heart disease”.
New research found that people who ate a 1-ounce serving of nuts each day showed a 20 percent reduced risk of dying from any cause over three decades, compared to those who did not eat nuts. The researchers looked at how nut consumption might affect all causes of death, as well as whether nuts were linked to death risk from specific conditions, such as heart disease.
For more info about the study click here : http://www.nlm.nih.gov/medlineplus/news/fullstory_142716.html