Paleo vs Primal

From what I've found, one allows for dairy, and the other does not.

It's all right here:
http://www.marksdailyapple.com/whats-the-difference-between-primal-and-paleo/

I follow what you would call "Functional Paleo". Primal Blueprint is probably the best form of this. Mark Sisson's son is a vegetarian.

Paleo is stricter.
Both have the same views on grains/flour/sugar/legumes/commercial PUFA oils), They are gradaully coming together since they are always evolving (as science learns new things). That's why I treat it as a "baseline".

They are both based on real food.
Meat. Ingredients = meat
Blueberries. Ingredients = blueberries
Eggs. Ingredients = eggs

Primal helped me learn what was affecting my body. It helped me learn that I am prediabetic (never been overweight or obese, just very very sick and unhealthy). I don't have to eat constantly (oatmeal is NOT filling. Eggs and bacon are). I get to eat lots of fat (about 65%-70% of my daily calories come from fat). And I stay lean eating mostly fat. BUT N=1!!! What worked for me will not necessarily work for the next person. But that's what Paleo/Primal is all about - finding out what works best for you and learning to "listen" to your body. (Eat real food and you will be amazed at what you "hear")

http://rawfoodsos.com/2010/07/07/the-china-study-fact-or-fallac/
http://www.gnolls.org/1444/does-meat-rot-in-your-colon-no-what-does-beans-grains-and-vegetables/ (this site has some really great articles - all science included!)
http://www.marksdailyapple.com/a-metabolic-paradigm-shift-fat-carbs-human-body-metabolism/