Mandarin (Citrus reticulata) is a small citrus fruit known for its sweet flavor, easy-to-peel skin, and bright orange color. Rich in vitamin C, antioxidants, and flavonoids, mandarins support immune health and help protect against oxidative stress. Because of their mild and pleasant taste, they are commonly eaten fresh or used in juices and desserts. However, some people may experience allergic reactions to citrus fruits, including mandarins.