Bananas are among the most important food crops on the planet. They come from a family of plants called Musa that are native to Southeast Asia and grown in many of the warmer areas of the world. Bananas are a healthy source of fiber, potassium, vitamin B6, vitamin C, and various antioxidants and phytonutrients. Many types and sizes exist. Their color usually ranges from green to yellow, but some varieties are red.