The leaves of the tree are a mild stimulant, and were traditionally chewed by farmers and labourers needing a boost or some light pain relief.
Kratom has a long history of household use. Chewing the fresh leaves is a remedy for stomach aches or diarrhoea, while others grill kratom leaves and eat them with chilli paste for a pick-me-up snack. The herb has also used to ease withdrawal from opium addiction.