Overall, the diet is high in protein, moderate in fat (mainly from unsaturated fats), low-moderate in carbohydrate (specifically restricting high glycemic index carbohydrates), high in fiber, and low in sodium and refined sugars.  The monounsaturated and polyunsaturated fats (including the omega-3 fats EPA and DHA) come from marine fish, avocado, olive oil, and nuts and seeds.
It may be difficult to healthfully adopt this program as The Paleo Way does incorporate a fair amount of animal protein. We do not have designated Vegan or Vegetarian options, but if you're open to creativity and able to consciously swap out certain ingredients that you wish to avoid, such as the animal proteins, then you may very well be able to pick up some new recipes and enjoy the Program.
Meetup has a growing number of paleo groups, now numbering in the dozens. Each has a local message board. They have a map of Paleo Diet Meetups around the world. Initially I tried listing them all here. The number grew and Meetup wasn't letting me find groups in newest order, except for my zip code. You now have to go there to find the one nearest you.
A diet high in phytic acid, which can be found in whole grains (it's in the bran) and beans like soy, is very detrimental for mineral absorption. Phytic acid strongly binds to minerals like calcium, iron, zinc and magnesium to form insoluble salts, phytates, which precipitate from the body and are not absorbed. Staffan Lindeberg has written a summary on phytic acid.
Nourishing Traditions: The Cookbook that Challenges Politically Correct Nutrition and the Diet Dictocrat by Mary G. Enig, Ph.D. and Sally Fallon. The premise is the culinary traditions of our ancestors, and the food choices and preparation techniques of healthy nonindustrialized peoples, should serve as the model for contemporary eating habits. However, they push whole grains and dairy, which aren't Paleolithic.
In making the case for meat, Cordain presents anecdotal evidence of Eskimos who lived their full life without a heart attack. The Eskimo diet consists of 97% meat, which he concedes causes all Eskimos to develop atherosclerosis—a common precursor to heart disease. But Cordain says Eskimos never die of heart disease. He discusses one Eskimo who lived 45 years and another who lived 53 years, both without heart disease! He then jumps to the conclusion that because these Eskimos didn’t get heart attacks, even with severe atherosclerosis, meat must have protected them from heart disease. So Cordain’s best case for lots of meat is that you can live to the ripe age of 45 or even 53 without a heart attack. But do people—even unhealthy smokers or the obese—generally get heart attacks before age 53?
To get an idea of what that means, we turned to the experts, including Loren Cordain, PhD, a professor emeritus at Colorado State University in Fort Collins, Colorado, and the author of The Paleo Diet; Erin Holley, RD, of Ohio State University Wexner Medical Center in Columbus, Ohio; and Lona Sandon, PhD, RD, an assistant professor of clinical nutrition at the University of Texas Southwestern Medical Center in Dallas.
Brandi currently lives in Kansas City, Missouri and is a self-taught cook and fitness enthusiast. She has focused on healthy recipe development and exercise for 5+ years after reaching a fitness plateau and struggling to lose weight and maintain body goals. Brandi’s goal is to share recipes and workouts that support a consistently healthy lifestyle.
Steak Enchilada Salad Lamb Stew with Roasted Bell Peppers and Sweet Potatoes Meatballs Atop Spaghetti Squash Skewered Lamb with Honey Glazed Carrots Greek-Style Meatballs Simple Beef Shish Kabobs Steak Zucchini Boats Veal Rolls With Zucchini Skirt Steaks With Fresh Mango Salsa Swedish Style Meatballs Beef Sirloin With Fresh Herb Marinade Butternut Squash Lasagna Butternut Squash and Beef Stew Roast Beef with Portobello and Balsamic Sauce Korean Beef Short Ribs Meatball Bites With Spaghetti Squash Beef Sirloin Grilled In Spicy Tomato Sauce Steak and Cucumber Salad Ground Beef Tacos Aussie Burger BBQ Meatballs Balsamic Steak Rolls Pepper Steak Balsamic Roast Beef Taco-Stuffed Sweet Potatoes Taco pie Eggs Benedict burgers Beef Stroganoff
Adoption of the Paleolithic diet assumes that modern humans can reproduce the hunter-gatherer diet. Molecular biologist Marion Nestle argues that "knowledge of the relative proportions of animal and plant foods in the diets of early humans is circumstantial, incomplete, and debatable and that there are insufficient data to identify the composition of a genetically determined optimal diet. The evidence related to Paleolithic diets is best interpreted as supporting the idea that diets based largely on plant foods promote health and longevity, at least under conditions of food abundance and physical activity." Ideas about Paleolithic diet and nutrition are at best hypothetical.
As University of California-Davis food chemist Bruce German told Pollan in an interview, “You could not survive on wheat flour. But you can survive on bread.” Microbes start to digest the grains, breaking them down in ways that free up more of the healthful parts. If bread is compared to another method of cooking flour—basically making it into porridge—”bread is dramatically more nutritious,” says Pollan.