#StrychnosNuxBlanda

For centuries, Tūmka—the modest seed from the Strychnos nux-blanda tree—has held a mysterious place in Thai folk medicine. Known under a constellation of regional names, including “Kotkakling”, “Khimka”, “Makting”, and “Sa Laeng Jai”, the seed’s reputation oscillates between being a powerful remedy and a perilous poison. With its origins woven through the rural and traditional communities of Thailand, Tūmka continues to intrigue both cultural custodians and biomedical scientists alike. But how much of its legacy stands up to modern science—and what should health-conscious readers know if they encounter this potent botanical?