i mean that unless you are growing some kind of super potatoes and tomatoes then there is not enough potassium in them. supplementing is a must here, even eating the most expensive organic food.
Potash /ˈpɒtæʃ/ is any of various mined and manufactured salts that contain potassium in water-soluble form. The name derives from pot ash, which refers to plant ashes soaked in water in a pot, the primary means of manufacturing the product before the industrial era. The word potassium is derived from potash.