Power Up Your Diet: Essential Potassium-Packed Foods To Add In Your Diet Avocados: High in healthy fats, vitamin K, and folate; one avocado provides around 15% of daily potassium needs. Sweet potatoes: A 1-cup serving of mashed sweet potato offers 16% of the DV for potassium, along with vitamin A and fibre. Coconut water: A cup contains 13% of the DV for potassium, plus magnesium, sodium, and manganese. Beans: White beans have 21% of the DV for potassium per cup, while black beans offer 13%. Spinach: Provides about 12% of the DV for potassium per cup, along with vitamin A, K, folate, and magnesium. Watermelon: Two wedges provide nearly 14% of the DV for potassium, along with vitamins A, C, and magnesium. Beets: One cup of boiled beets provides 11% of the DV for potassium, along with folate and nitrates. Pomegranate: One whole fruit offers 14% of the DV for potassium, plus folate, vitamins C and K, and protein. Fish: Cod, haddock, salmon, and tuna are potassium-rich options, with various percentages of the DV. Salt substitutes: Potassium-based salt substitutes can help reduce sodium intake and provide around 11% of the DV per gramme of potassium chloride.