There's obviously a burgeoning literature on the Paleo/Primal movement, but in my experience most books (or more often, jankety PDFs and Kindle files) seem to combine some science with quirky personal tales, heavily invested opinions and more personality than I'd like. Good Calories, Bad Calories is probably the best example of heavily researched and more detached (sort of) academic literature - though it's scope is limited in tangentially advocating for a paleo-based diet.
Does anyone have suggestions for more nitty-gritty science? I'm not looking for recipes or for Robb Wolf to tell me how to squat. And Nora Gedgaudas can frequently sound like an infomercial.
I think most authors find their books read better (and sell more copies) when they include a personal touch. If you want just the nitty gritty science, I agree that your best bet is to go right to the journal articles.
Also, I find that J Stanton's blog posts (Gnolls.org) are usually very well researched and written. He avoids the Paleo drama of the day and sticks to explaining the science in layman's terms. If could write a Paleo blog, it would be his:
Not paleo, but Nutrition and Physical degeneration by Weston price is an good book. Basically the summary is 'don't eat white sugar and white flour and modern crap". But it's interesting to see that humans can survive on such diverse diets as long as they don't contain all the modern refined processed junk.
Catching fire - how cooking made us human' makes a good case for the importance of starches in human evolution.
Very academic, well sourced, current. The title: "Comparison with ancestral diets suggests dense acellular carbohydrates promote an inflammatory microbiota, and may be the primary dietary cause of leptin resistance and obesity"