On the second point, if you compare to chicken https://en.wikipedia.org/wiki/Chicken_as_food https://en.wikipedia.org/wiki/Chicken_as_food which has nothing abo

On the second point, if you compare to chicken https://en.wikipedia.org/wiki/Chicken_as_food https://en.wikipedia.org/wiki/Chicken_as_food which has nothing above 20% of RDA per 100g, mushrooms suddenly don't look so bad. (Though it does make me wonder how complete the nutrient tables on Wikipedia are.)