Dragon Fruit (Pitaya)

Dragon fruit, also known as pitaya or the strawberry pear, is a beautiful tropical fruit that is sweet and crunchy. The plant the fruit comes from is actually a type of cactus of the genus Hylocereus, which includes only about 20 different species. 

Here are the nutrition facts for a serving of 3.5 ounces, or 100 grams (1Trusted Source):

• Calories: 60
• Protein: 1.2 grams
• Fat: 0 grams
• Carbs: 13 grams
• Fiber: 3 grams
• Vitamin C: 3% of the RDI
• Iron: 4% of the RDI
• Magnesium: 10% of the RDI

Given the high amount of fiber and magnesium, as well as the extremely low calorie content, dragon fruit can be considered a highly nutrient-dense fruit.