Foods in the diet
Foods which are included in the diet are ones that can be obtained by using Paleolithic tools and practices, like meat (preferably game, though many followers of the diet eat farmed meat for practical reasons), fish, and gathered or foraged fruits, leaves, and roots of plants, mushrooms, nuts, eggs, and honey.
Some practitioners allow the use of oils derived from those foods which can be obtained and produced through Paleolithic means and are edible in their natural, uncooked state. Examples could include sesame oil, olive oil, and safflower oil, but not oils derived from beans (for example, peanut oil) or grains (for example, corn oil). Others avoid the use of any oil, as it is a processed food.
The non-animal foods available in the diet are the same as those available in raw veganism. However, there are two fundamental differences between raw veganism and the Paleolithic diet: Firstly, practitioners consume meat and other animal products (in fact usually more is consumed than on a standard modern diet, in some cases substantially more). Secondly, any and all food may be cooked if desired.
[edit] Foods not in the diet
Vegetable foods which are not edible raw and unprocessed are excluded from the diet. The foods falling into this category are mainly grains (wheat, corn, rice, etc.), starchy vegetables (i.e., beans, and potatoes), certain fruits and nuts (e.g. cashews), and refined sugars. Alcoholic beverages are generally excluded because fermentation is also a form of processing, although some Paleolithic eaters allow certain exceptions (i.e., wine, since fermented (over-ripe) fruit can be found and consumed in small quantities with little ill effect). Dairy products are excluded despite being edible raw, since they cannot be found or consumed easily in nature, at least in any considerable quantity, and are consequently a post-agricultural food.