Which type of potato is healthiest? When it comes to their antioxidants, as you may expect it is sweet potatoes which have the most - over 25% more than the second highest. Though russet, when it is baked with flesh and skin, takes the 2nd place trophy. After that, it's red and white potatoes.
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