Grapes

They help regulate the water balance because they contain a high amount of potassium and a little iodine so the body can more easily eliminates excess water and extra toxins.
They contain, especially black grapes, large amounts of flavonoids,
anthocyanin, stilbenes, and many other antioxidants that have anti-cancer properties.
In addition, grape juice and red wine contain resveratrol that protects the heart.