Opuntia ficus-indicia or Prickly Pears can be used in dye production, medicine, as well as food. Large sweet fruits are called cactus fruits or tunas in Spanish. These fruits can be eaten raw, made into jams and jellies, and even used in making ice-cream, desserts, as well as drinks and smoothies. There are two main types grown in the Canary Islands: small red skin tuno indio and tunos that can be green, yellow, orange, or red. Tunos are rich in Vitamin C and have an 85% water content.