What Vegetables Are Good for the Kidneys? that support kidney health are usually low in sodium, potassium, and phosphorus. Good choices include cabbage, cauliflower, bell peppers, onions, garlic, and radish. These vegetables help reduce toxin buildup and support better kidney function. Leafy greens like lettuce and coriander can be eaten in moderation. Including fresh, well-cooked vegetables in daily meals helps manage kidney stress and promotes overall renal health naturally.