Glycemic Index Rank: 10
Although mushrooms can vary a bit based on the exact type, they all tend to come in extremely low on the Glycemic food index around 10. The food is commonly used to add flavor to a side dish or main course of a lunch or dinner meal. Many types are known to have anti-cancer effects on one’s body. Larger mushrooms like the portabella type are commonly used as a meat substitute in a number of recipes as well.