Good to know! And isn't crazy that in 2018 we are still discovering and uncovering this helpful molecules? That just goes to show how complicated our biological systems are. We have only a surface knowledge of all that is going on. For that reason - continue to follow nature's cues. Eat a variety of whole, real foods.
This is one of the reasons (taste also being an important reason! LOL) that we grow a variety of rare foods plants on our farm. There are so many delicious things out there that you will not find in a grocery store. For all the American growers out there - look into some of the native plants we have that produce good quality food - american plum, hackberry, pawpaw, gooseberry, ground cherry, red ochre, nannyberry, nanking cherry, garlic chives, autumn olive, currants, black rasperries, pecans. Aside from pecans, how often do you] see any of the fruit from these plants in the grocery store? Rarely if ever. There is a lot of tasty, healthy stuff out there. We have no idea what we are missing by missing out on some of these varieties.
Rare edibles, honey bees, and wildlife habitat
I think you make a good point, and that's a strategy I use as well. I know I'm going to eat apples, plums, pears, bananas, and oranges, from my yard or bought, but with the other ones, you only eat it if you grow it.
Here's one of the polyphenols that have been specifically identified. Of course they're already selling it as pills...but I'd very much recommend we all eat it as part of our whole food dietary intake. As mentioned by Angela, we're still scratching the surface on our understanding of how all this works....fill up your diet by eating your permie plants (and not the grocery store processed stuff)!!!