Chillies or peppers are native to the Americas and can be hot to eat. Different species of pepper have different intensities, where the chemical 'capsaicin' is responsible for its heat. Chillies are present in a wide range of cuisines including Indian, Mexican and Asian and add hot flavours in dishes such as curries and sauces. In terms of nutritional benefits, they contain high levels of vitamins A, B and C.