21. Sweet Potatoes
Glycemic Index Rank: 48
Sweet potatoes have been a popular option for those choosing healthy foods for a number of years now. They also have a decent Glycemic Index ranking of 48 for those looking to keep their blood sugar levels low. They rank slightly better than basked, white potatoes that come in at a score of 60, and mashed potatoes come in at a ranking of 80. The ranking of the sweet potato does go up if you mix it with other sweets like marshmallows or brown sugar, so ensure you maintain awareness of what is being cooked with the food before eating it.