Many foods come from the rainforests, such as plantains, bananas, and pineapples. Natives who live in the rainforest make use of anything and everything.
There are a huge range of foods. Mostly however they are different types of fruit, including bananas, coconuts and pineapples. Cattle are often raised on deforested rainforest land too.
When you drink your cup of coffee, I doubt you think about where it came from, most of the coffee we drink is imported from the South American rain forest.