Calamansi is a small, round citrus fruit native to the Philippines and other parts of Southeast Asia. It has a thin, greenish-yellow skin and a tart flavor, similar to a mix of lime and tangerine. Calamansi is often used in cooking, beverages, and as a garnish due to its refreshing taste. The fruit is rich in vitamin C and antioxidants, making it a popular choice for health-conscious individuals. In addition to culinary uses, calamansi juice is sometimes used in traditional remedies for colds and sore throats. Its versatility makes it a staple ingredient in many Filipino dishes and drinks.