In order to snack on nuts, which is useful, you need to buy them without the slightest apprehension

Please keep in mind that we are speaking of nuts not products.
Almonds, nuts, hazelnut and others are foods when you buy them unsalted, unroasted and as fresh as possible. You need also a nutcracker.

http://www.nytimes.com/video/dining/100000002608375/whats-in-it-nuts.html?