High in riboflavin (as much as in an eight-ounce glass of milk) and contain as much fiber as a serving of lettuce.
5 Benefits of Fresh Mushroom in Your Diet

There is no need for adding salt to mushrooms as they add flavor. Mushrooms are high in dietary fiber, a 100g serving having more fiber than a slice of whole wheat bread.

Mushrooms have other key health benefits since there is no sodium (Salt) thereby reduce the risk of high blood pressure & hypertension by decreasing sodium.

Mushrooms reduce risk of birth defects with adequate folate may reduce a woman's risk of having a child with brain or spinal cord birth defects.

Mushrooms are a good source of potassium and have no sodium thereby reducing the risk of high blood pressure and stroke.