Packed with important vitamins like A, C and B6, sweet potatoes have good antioxidant properties. Baked sweet potatoes tend to have a much higher glycemic index than boiled ones because of how the starches break down during the cooking process. The phytonutrients associated with different colors in sweet potato do have different health properties. Orange sweet potatoes have a glycemic index of 61 and a glycemic load of 11 while murasaki has a higher glycemic index of 75 and a significantly higher glycemic load of 22. Its concentrated sweetness … A baked sweet potato is still on the high end of the medium range of the glycemic index, so don’t pile it on your plate. The texture is drier, firmer, and starchier. A s healthy food goes, it's hard to beat the sweet potato. Last updated: 26 November 2019 They have a nutty flavor that tastes somewhat like a roasted chestnut. They're also an excellent source of dietary fiber, potassium and iron. The glycemic index results from the research are based on a serving of 150 grams of sweet potato. © 2019 The University of Sydney, All Rights Reserved. Which was prepared by boiling them for some 8 minutes. Depending on the type and cooking process, sweet potatoes have a glycemic index of 44 to 94. Japanese sweet potatoes, on the other hand, are reliable in their ability to brown and char: If you're going to make sweet potato oven fries, look no further. Components in Japanese Sweet Potato Tubers. For example, boiled waxy potatoes have a glycemic index of 89 while baked starchy potatoes have a glycemic index of 111. A 2012 study published in The Open Nutrition Journal, titled “Glycemic index of sweet potato as affected by cooking methods,” worked with the popular Beauregard variety, which has … Japanese sweet potatoes have a much sweeter taste than ordinary sweet potato varieties found in the US. Besides that, however, sweet potato strains have a very similar nutritional profile.Rich in vitamins, minerals, and phytonutrients, sweet potato has been named the ‘healthiest of all vegetables’ by The Center for Science in the Public Interest []. Try sweet potatoes or yams in place of a regular potato.