Fruit and vegetable juices, milk, coffee and tea are all high in potassium. The daily recommended intake of potassium for people aged 14 and over is 4,700 milligrams, according to WebMD.
A variety of fruit and vegetable juices will provide high amounts of potassium. Tomato, prune and orange juice are all high in potassium, according to Drugs.com. Milk is also high in protein, whether whole, nonfat or soy.
Tea and coffee have very high levels of potassium, according to Diet and Fitness Today. Several forms of tea and coffee, such as powdered and instant, have the highest amounts of potassium on the list.