In fact, there are several studies citing mushrooms and fungi to have to ability to lower down serum cholesterol. However, it should be taken into consideration that although mushroom and truffles have no cholesterol and low in fat, the method of cooking them would usually require them to be infused with butter or oil. French Black Truffles or Perigord Truffles French black truffles are considered the best truffle variety, which is why it can cost as much as $1,000 per pound. When fresh, a Perigord truffle has a bluish black outer cover. And when it ages, its exterior become brownish black and emits a strong earthy aroma. Because of the rarity of this mushroom, the production of Black Truffles has been made almost exclusively in the European countries. Black truffles are sold for about 1,000 per kilo when bought in the farmer's market. Its price could go double at 3,490 per kilo when bought from a retailer. Then there s the Chinese Truffles. One of these reasons is you are eating truffles because these may bring you health benefits. Through the years, contentions have been hounding the health benefits and nutritional value of truffles and mushrooms, in general. People say that edible mushrooms such as truffles have no nutritional value at all and these are used just to add flavor to a variety of staple dishes. How to Find Truffles in the Wild: Guide for Truffle Hunters Ever wondered why truffles are so expensive? Truffles these days are sold for hundreds or even thousands of dollars per pound. It s because they are extremely difficult to find. Unlike typical mushrooms that grow on the bark or exposed roots of trees, truffle mushrooms grow underground. It is also more expensive than its better known brother because demand for it out numbers supply. White winter truffles are harvested between October and December. Other varieties of truffle mushroom include white summer truffle and black summer truffle. Harvested from January through April, white summer truffle is the least popular among the main types of truffles.