Nutrition Books/Literature?

I'm relatively new to MFP but loving it so far. I'm a science-minded person and looking to learn more of the biochemistry of nutrition and exercise. I was wondering if anyone has recommendations of books that go into either of these topics. I don't need an organic chemistry textbook (I have a few). I'm just looking for some additional resources that cover a little more than the casual "do's and don'ts" of eating, exercise & supplements.

...any suggestions where to start?