Vitamini C, yomwe imadziwikanso kuti ascorbic acid, ndi vitamini yosungunuka m'madzi yomwe ndi yofunika kwambiri pa thanzi la munthu.Amapezeka muzakudya zambiri, monga zipatso za citrus (monga malalanje, mandimu), sitiroberi, masamba (monga tomato, tsabola wofiira).