Heat and water releases chemicals, that can be destroyed by over cooking. These chemicals-'phytochemicals' while not essential, have antioxidant qualities, that can strengthen, immune,and repair systems.
I wonder how peanuts would be boiled in stock, or after a marinating.
I might have to make up a few new peanut recipes. Of course there's always Sate- an Asian Peanut and chilli dish-there's a reference under Satay in wikki, but now I know there can be health benefits.