There are many public critiques of paleo, especially from the vegetarian / vegan community. While not many actually provide strong evidence, there are some gems out there. As meat eaters we have a responsibility to examine all sides of a dietary argument. I am focusing on health studies, but sustainability studies are welcomed.
This is a similar question: Anti-paleo arguments, but I am specifically looking for studies. Here are a few I have found so far.
Ketogenic diets leads to bone loss in epileptic children http://www.ajcn.org/content/88/6/1678.full
Low carb diets produces a worse "mood" than low fat http://archinte.ama-assn.org/cgi/content/full/169/20/1873
Inceased whole grain consumption may lower heart disease http://www.ajcn.org/content/70/3/412.abstract?ijkey=508428b54c82396ddb826d597a03ef2db58b0453&keytype2=tf_ipsecsha
Tarahumara Indians eat a diet of 75% carbohydrates, "virtual absence of obesity" http://www.ajcn.org/cgi/ijlink?linkType=PDF&journalCode=ajcn&resid=31/7/1131
Red meat may increase risk of breast cancer http://archinte.ama-assn.org/cgi/content/full/166/20/2253
Paleolithic culture found to eat high amounts of legumes http://www.mendeley.com/research/mousterian-vegetal-food-kebara-cave-mt-carmel/
Does anyone know of other studies, and can you refute the ones I've mentioned?
I sense by the lack of response to this question that people on here are slightly tired of arguing against the same points. All of these answers can be found on this board multiple times with a little bit of searching.
Here's another good one
studies like the china study leave out important variables. Like that native study above? they probably walk 20 miles a day, eat mostly fruit and have nothing processed in their lifestyle, (I didn't click on the link). And any red meat study...do they tell you what else is eaten? probably not! Primal Body Primal Mind is an awesome book, check it out.
Start with some thesis, then Google it, and you'll find a study that corroborates or contests the thesis. The small-sample, curiously interesting, outlier research study tells us nothing, or tells us everything, depending on what we're looking for.