It isn't food at all, yet piles of it outsell almost everything else at Honiara's markets — chewed with a mustard stick and lime powder for a quick, mouth-reddening buzz.
Betel nut, known as buai, is sold in small mounds at Honiara Central Market alongside a mustard pepper stick and a pinch of powdered coral lime. Chewed together, the three ingredients release a mild stimulant and turn saliva bright red.