Rod duan are fried bamboo caterpillars originating from Thailand. The caterpillars live in the bamboos and consume it as well. They're high in protein, low in fat, and some people believe that they have medicinal properties. The caterpillars are usually deep-fried in hot oil, and they become very crunchy in texture after the process.

The flavor is often compared to fried potato chips. Sometimes, they're cooked with chili paste. Rod duan can be easily found in numerous street markets in the country and it's one of the most common fried insects in Thailand.