Mappillai Samba rice is a native, red-colored, heirloom variety of rice from Tamil Nadu, India, known for its nutritional value and strength-giving properties, which are reflected in its name meaning "bridegroom's rice". Traditionally consumed by grooms to boost their stamina, it is rich in fiber, iron, and antioxidants, which aid digestion, improve immunity, and help regulate blood sugar levels due to its low glycemic index.