3. Salmon
You already know it contains those brain-boosting omega-3’s, but salmon can also help your heart. A 3-ounce cooked fillet packs in 534 milligrams of potassium.
4. Leafy Greens
Spinach, chard, and beet greens not only supply vitamin A and vitamin K, but they’re also full of potassium — up to 655 milligrams in half a cup.