Prevention magazine lists Mushrooms as super food #7 and in the category of fighting infections in the body. Apparently, edible mushrooms are a good source of selenium which increases our white blood cells and Vitamin D. In addition, it is rich in antioxidants along with various other good for us attributes.
In reviewing a few articles on PubMed - not all mushrooms are created equal and in the past was noted as several not being high in selenium. However, if grown in the right soil, this allows them to become higher in Selenium and other nutrients. So, I would say - do your research on which Mushrooms are higher in Selenium if this is something you are needing. Https://www.ncbi.nlm.nih.gov/pubmed/18781538
In another article, they are noted to be high in antioxidants and also are good for our diets as they are high in protein and low fat levels, cholesterol, etc. https://www.ncbi.nlm.nih.gov/pubmed/26516828
If only I could get past their texture. I cannot stand their rubbery texture whether raw or cooked. But, alas, I know they are quite appealing to others. Just be sure you are getting edible mushrooms and do not go out and pick the ones that sprout up in your lawn...
Some mushrooms are actually poisonous to our bodies therefore, be sure to buy yours from a grocery store or natural food store that is knowledgeable in this arena.
Happy Mushrooming to those that like them!