Also called the dward namwah and kluai namwa, this variety is native to Thailand and is a much less common variety for food in the United States. The amount of antioxidants it has compared to traditional bananas is less. With the latter having an ORAC value of 795, while the nam wah has less than half that amount.
ORAC Source
USDA Database for the Oxygen Radical Absorbance Capacity (ORAC) of Selected Foods, Release 2 - Prepared by Nutrient Data Laboratory, Beltsville Human Nutrition Research Center (BHNRC), Agricultural Research Service (ARS), U.S. Department of Agriculture (USDA) - May 2010