Bananas, beets, and goji berries, among other food items, are high in potassium. Try eating a bunch of these things (carefully) and see if they result in cloudy urine.
Goji berries seem to do it for me. They're very high in potassium.
I'll try bananas tomorrow if someone else with a cloudy urine tendency (carefully) tries another high potassium food. (With sodium salt handy to put the ratio back in balance.)