What is dragon fruit?

Dragon fruits or Pitaya are the lithophytes or hemiepiphytes of Cactaceae family primarily distributed among tropical regions. This fruit initially attracted the researchers looking for natural food grade dyes for its striking color pigments (betalains), however, investigations established that dragon fruit pulp, peel, and seed contain potentially beneficial carbohydrates, phytoalbumin, biopeptides, vitamins, phenolics, and minerals. The seeds of dragon fruit are exceptionally small, so could not focused for their oleoginous compounds but research up to the date indicates that seeds of this fruit are rich in essential fatty acids principally omega-3 and omega-6 fatty acids as well as tocopherols.