Button mushroom is widely available in Indian market. It has varies in color from white to light brown. Mushrooms are extremely porous and soak up water like a sponge. Button Mushrooms are also a good source of riboflavin, niacin and contain no fat or cholesterol. Button Mushrooms are low in calories, low in fat and have no cholesterol. It is a good source of minerals, especially potassium and also a good source of vitamins. Mushroom are used to make salads, soups, subzis and other delicious dishes.