While all kinds of nuts contain heart-healthy omega-3 fats, walnuts especially (14 halves contain 185 calories, 18 grams fat, 4 grams protein) have high amounts of alpha linoleic acid (ALA). Scientific researches have suggested that ALA may help heart arrhythmias.
Also, a Spanish study from 2006 suggests that walnuts are as effective as olive oil at reducing inflammation and oxidation in the arteries after consumption of fatty meals. The authors of this study, funded in part by the California Walnut Commission, recommended eating about ten walnuts a day to achieve such benefits.
For decease prevention, Relatively low in calories, almonds have more calcium than any other nut, making them a great food for overall health.
They are rich in fiber and vitamin E, an antioxidant too that helps fight inflammation and possibly health conditions such as lung cancer and age-related cognitive decline.