My children love mushrooms, I made mushrooms sauteed in butter one of their first foods.
I will slow cook them on a skillet with either pasture butter or lamb fat.
I don't think mushrooms are much good raw, but if they are slow cooked then the low glycemic polysaccharides become more bio available. I believe that some mushroom nutrients have brain and immune enhancing properties, and when used as an edible sponge for fat , they can be a healthy food .
especially in winter because of the vitamin D found in mushrooms.