what causes all food to taste salty
* Post-nasal drainage, such as with a sinus infection (sinusitis) or allergies. Rarely, a salty taste in the mouth is due to a nutritional deficiency, endocrine disorder or neurological disorder, such as epilepsy or migraine. Treatment is directed at the underlying cause, if possible.
The salty taste you are experiencing could be due to many causes. It could be that you are dehydrated especially if you are taking a medicine such as a diuretic, or drinking too much cafienated drinks (coffee, coke.. etc).