Sodium is required by the body to regulate blood pressure and blood volume. . Sodium also helps in the proper functioning of muscles and nerves and helps regulate the fluid

 

Sodium occurs naturally in almost all fresh, whole fruits.

Sodium occurs naturally in almost all fresh, whole vegetables

 

Nuts:

Peanuts Pumpkin Seeds Cashews Pistachios

Chestnuts Macadamias Almonds

Too much sodium is not good for the body though so do be careful especially in birds. That is what worries me about salted nuts, I would use unsalted.

Sorry I didn't add the UNSALTED nuts in this post - It is under a different topic NUTS can birds eat them

 

As long as they are not salted then it is fine but not all birds will