Not only does this epicurean delight astound the most discerning palate, but Shiitake offers nutritional value as well. If you're of the vegan persuasion, Shiitake can be another source of protein. These mushrooms are full of B vitamins, copper, zinc, manganese, choline, vitamin D, choline and folate. The medicinal values have long been known in Asian countries and are now being researched in wes
tern countries as well. In the last 40 years research supports Shiitake as strengthening the immune system, reducing cholesterol, lowering blood pressure, improving liver function and is used supplementally in treating certain cancers.