#Makrut

For centuries, the aromatic leaves and knobbly fruits of the kaffir lime—known in Thai as makrut—have graced Thai kitchens, ritual spaces, and medicine cabinets. Its distinctive fragrance is instantly recognisable in tom yum soup and green curry, yet beyond its culinary appeal lies a trove of traditional healing wisdom. Today, scientists are delving deep into this humble plant’s chemistry, revealing how ancient practices may be supported—and sometimes challenged—by modern research.

Makrut lime, known in Thai as makrut, has long colored Thai kitchens, rituals, and traditional medicine. Its fragrant leaves and knobby fruit flavor dishes like tom yum and green curry, but they also carry a rich history of healing knowledge. Today, researchers are exploring the chemistry of this plant, testing which ancient practices hold up under modern science and where they may diverge.

Makrut lime (Citrus hystrix) plays a special role in Thai life. Indigenous to Southeast Asia and widely grown across rural Thailand, its uses extend beyond food. The leaves are used in ceremonial cleansing to bless homes, while the essential oils appear in perfumes, massage, and natural insect repellents. Traditional healers incorporate nearly every part of the plant—leaves, rind, juice, and roots—for ailments from headaches and stomach issues to high blood pressure and postpartum recovery. In Thai culture, makrut’s reach goes from the kitchen to the clinic and the home.