Mushrooms: A Treasure Trove of Nutrients Mushrooms are not only flavorful but also a valuable source of nutrients. Packed with vitamin C, copper, and potassium, they contribute to immune cell function, antioxidant protection, and blood pressure regulation. Including mushrooms in your diet can be as easy as tossing them into stir-fries, soups, or salads. Their earthy taste adds depth to your dishes while supporting your immune system.