Technically mushrooms are neither fruit nor vegetables, as they are not plants. The U.S. Department of Agriculture does classify mushrooms as vegetables, though, because they provide many of the nutritional attributes of vegetables and are a healthy addition to diet.
White mushrooms, such as button mushroom, cremini and the Portobello, are high in selenium which aids weight loss and might have positive effects on prostate cancer. Shiitake mushrooms could also fight tumors and infections. They are an excellent source of vitamin D. Reishi mushrooms contain gandodermic acid which helps reduce cholesterol which in turn can lower high blood pressure. Oyster mushrooms are being studied as a possible defense against HIV. Looking like a single mini-trumpet, Chantrelle mushroom has been associated with anti-microbial, bacterial and fungal properties. Porchini is a meaty mushroom similar to the Portabello, it has anti-inflammatory properties. Shimeji mushrooms can enhance the immune system and boost its healing capabilities.