Misconception: Mushrooms are a low-calorie food with little nutritional benefit.
Why They're Good for You: They may be 90 percent water and have only 18 calories per cup, yet mushrooms contain compounds that may do everything from bolster immune function to suppress breast and prostate cancers to decrease tumor size. They contain a healthy helping of the blood pressure-lowering mineral potassium. While orange juice is touted as one of the highest potassium foods, one medium portobello mushroom actually has more potassium, and five white button mushrooms have more potassium than an orange.
Wild Mushroom and Rice Timbales