You can eat tomatoes with nephritis. Tomato is a vegetable that provides the body with vitamin C, potassium, dietary fiber and antioxidant components. The sourness in it comes from organic acids, while the sweetness comes from a small amount of sugar. It contains about 20 times more vitamin C than apples, and is basically comparable to potatoes, white radish, and cabbage, but only about half that of citrus and strawberries, and 1/5 that of kiwifruit. the main antioxidant ingredient in tomatoes is lycopene, which belongs to the class of carotenoids, and the amount of carotenoids and lycopene varies depending on the variety. Dark red tomatoes are high in lycopene and low in carotene, while orange tomatoes are relatively high in carotene. The darker red the tomato, the more valuable it is if you want to get lycopene. Unlike carotene, which is converted into vitamin A in the body, lycopene has more antioxidant properties than carotene and is beneficial to health. There is more research evidence in the prevention of prostate cancer and cardiovascular disease. Tomatoes are low in calories very high in water content and rich in potassium. If a person with nephritis already has hyperkalemia or needs to restrict water, consumption should be limited.