Mushrooms are good sources of three hardworking B-complex vitamins--riboflavin, niacin and pantothenic acid. They are all found in every cell in our body, helping release energy from the fat, protein and carbohydrate in our food. In addition:
Riboflavin promotes healthy skin and good vision.
Niacin helps make sure the digestive and nervous systems function as they should.
Pantothenic acid is involved in the production of hormones and also plays an important role in the nervous system. Mushrooms are a particularly rich source of riboflavin. One portabella mushroom takes care of nearly one-third our daily value; a serving of white or crimini mushrooms supplies one-quarter of what we need daily. Vegetarians should also be aware that mushrooms are one of the best plant-based sources of niacin around.