Salting is a sub category of the drying method. The main difference here is that salt is added to products, mainly meat and fish, to draw out moisture. This lowers the bacteria content and makes food adaptable for later use. Adding salt to animal protein turns it a bit leathery.
Diseases and conditions that may cause edema include: 1  Congestive heart failure. 2  When one or both of your heart's lower chambers lose their ability to pump blood effectively â as happens in congestive heart failure â the blood can back up in your legs, ankles and feet, causing edema.
1 Excess fluid that accumulates in the abdominal cavity is called ascites. 2  Edema of unknown cause (idiopathic edema) occurs primarily in women.  Varicose veins or thrombophlebitis (a blood clot in an inflamed vein) of the deep veins in the legs causes edema that is localized to the legs.