Kalamansi is a small, round citrus fruit native to the Philippines. It has a thin, greenish-yellow skin and a tart flavor, similar to a mix of lime and orange. The fruit is often used in cooking, beverages, and as a garnish due to its refreshing taste. In addition to its culinary uses, kalamansi is also valued for its nutritional benefits. It is rich in vitamin C and antioxidants, making it a popular choice for boosting the immune system. The juice can be used in marinades, salad dressings, and even as a natural remedy for various ailments.