I am going to list different products that I think are good for you. Important thing to remember is where you get them.
I also list good companies as well.
In the case for mushrooms - you MUST get them from a trusted source. Do not get stuff overseas and you have to make sure the company is not importing it, but growing it locally! Seriously! There is high contamination of heavy metals, or you are not really getting what you ordered if you are getting them from just anywhere. There are A LOT of companys that look like they are american but are just importing the stuff. (look up shipping records to see if they imported anything)