I'm not only asking about blueberries and antioxidants, but foods generally.
For example I'm fairly sure that the tannins in tea bind to iron, though again that could be CW, rendering it bio-unavailable. And tea is not paleo, so probably I shouldn't be having tea with my meals.
I think it IS paleo to think about these things, because remember this is about combining contemporary science with study of evolution so that we get the most out of our life. And chemicals in foods interact, of course they do, it does matter.
If you don't want to bother about it, that's fine. I'm interested and like to know about these things, that's why I'm asking.
If we’re not supposed to eat animals, how come they’re made out of meat? Tom Snyder