For most people the fact the Paleo diet delivers the best results is all they need. Improved blood lipids, weight loss, and reduced pain from autoimmunity is proof enough.  Many people however are not satisfied with blindly following any recommendations, be they nutrition or exercise related. Some folks like to know WHY they are doing something. Fortunately, the Paleo diet has stood not only the test of time, but also the rigors of scientific scrutiny.


One larger randomized controlled trial followed 70 post-menopausal Swedish women with obesity for two years, who were placed on either a Paleo diet or a Nordic Nutrition Recommendations (NNR) diet. [7] The Paleo diet provided 30% of total calories from protein, 40% fat (from mostly monounsaturated and polyunsaturated fats) and 30% carbohydrates. It included lean meats, fish, eggs, vegetables, fruits, berries, nuts, avocado, and olive oil. The NNR diet provided less protein and fat but more carbohydrate with 15% protein, 25-30% fat, and 55-60% carbohydrates, including foods similar to the Paleo diet but also low-fat dairy products and high-fiber grains. Both groups significantly decreased fat mass and weight circumference at 6 and 24 months, with the Paleo diet producing greater fat loss at 6 months but not at 24 months. Triglyceride levels decreased more significantly with the Paleo diet at 6 and 24 months than the NNR diet.

I experienced some funky physical symptoms during the first 10 days or so, but this is pretty typical of a Whole30. I would feel great, and then the next day I would feel tired, achy, and bloated. Depending on what your diet was like before you started the Whole30, you’re bound to get hit by some sort of detoxing symptoms. If you’re doing this after eating a lot of sugar and processed food, your symptoms might be a bit more severe. However, the book assures you it’s normal, and it will even out. According to the authors, the bacteria in your gut are shifting and creating a new landscape. Your body is getting used to this new diet of protein and a ton of veggies with the absence of sugar. Things adjust and shift. For me, this meant a couple days of feeling off.
In William Calvin's The Ascent of Mind, Chapter 8 he discusses why he thinks that the Acheulian hand-ax (the oldest of the fancy stone tools of Homo erectus) was really a "killer frisbee." He argues that natural selection for throwing accuracy, which requires brain machinery, is the evolutionary scenario for bootstrapping higher intellectual functions. There are many more articles about evolution and human development throughout William's extensive site, though much of it these days is on climate change.

At GPPD CrossFit, our focus is to train our officers to be efficient at performing constantly varied, functional movements at relatively high intensities. This is what real life demands of us outside of the gym. We are dedicated to providing our citizens with the highest, most effective service possible by ensuring we are well trained and well-conditioned for whatever comes our way while serving our community.  
If you've been on the Whole30 and counting down the days until February 1st, step away from the cheese! Before you transition back to your normal diet, here are five solid lessons that I learned from the eating plan that I stuck with even after the 30 days were up. Not only did following them beyond the 30 days prevent me from rebounding back to my higher weight, but they also help keep me on the straight and narrow the rest of the year when I’m not following the program.

The top CrossFit Open performers for individuals and teams in each region advance to the regional events, held over the following two months around the world. Each regional event qualifies a specified number of its top finishers to send to the Games. The Games include divisions for individuals of each gender, co-ed teams, and a number of Masters and Teenage age groups.[49]
Of course Wikipedia has a page on the Paleolithic Diet. It is quite thorough. It also isn't clear about the lean/fatty meat debate between the followers of Loren Cordain and a slew of others, and pushes lean meat. It is weak on the variations of the diet. Then it restricts fermented beverages. Even butterflies eat fermented fruit. Why wouldn't our paleo ancestors also?

My fiancee and I did this together. It takes teamwork (if you have a family, you probably need to get them on board). It also will help if you can begin (or even complete) this diet when you have a minimum of social obligations--having office mates who eat a lot of cake or friends who drink a lot of booze WILL NOT HELP while you are on this program. Don't try to start this the week before Christmas if your family gathers to eat until they pass out. Be realistic about when you begin this. You must prepare a little bit and read the book ahead of time so you aren't just floating at sea. And, be aware: you will not be able to sufficiently screen foods made by other people!

The data for Cordain's book only came from six contemporary hunter-gatherer groups, mainly living in marginal habitats.[36] One of the studies was on the !Kung, whose diet was recorded for a single month, and one was on the Inuit.[36][37][38] Due to these limitations, the book has been criticized as painting an incomplete picture of the diets of Paleolithic humans.[36] It has been noted that the rationale for the diet does not adequately account for the fact that, due to the pressures of artificial selection, most modern domesticated plants and animals differ drastically from their Paleolithic ancestors; likewise, their nutritional profiles are very different from their ancient counterparts. For example, wild almonds produce potentially fatal levels of cyanide, but this trait has been bred out of domesticated varieties using artificial selection. Many vegetables, such as broccoli, did not exist in the Paleolithic period; broccoli, cabbage, cauliflower, and kale are modern cultivars of the ancient species Brassica oleracea.[28]
But critics argue that the unlimited amount of red meat the paleo diet allows may have an adverse effect on heart health in people with diabetes, as research links eating red meat in excess to poor heart health. (11)  If you have diabetes and don’t moderate your red-meat intake, this could be a big problem, as people with diabetes are 2 times as likely to die of heart disease as people who do not have diabetes. (12)
Thank you CFA coaches for always scaling the WOD for my medical needs, but still making the WOD fun and challenging. I may not be able to lift heavy or ever be a part of the CF games, but I do feel like a part of CFA family and with that I could never go back to a gym. It’s been a privilege meeting and working out with great people. I feel honored to be selected CFA Athlete of the Month. CROSSFIT PROUD!!!

This book has simply changed my life. I know that you aren't supposed to weigh yourself on this program, but weighing myself is a motivator so I decided to skip that rule. It's only been two weeks and already I feel so much better. I am more alert in the mornings and my acid reflex is gone. In addition, my migraines seemed to have disappeared entirely. What is really motivating me is the fact that I lost 15 pounds and 10 overall inches in two weeks. I also love the fact that I have the energy to exercise again. I look forward to continuing this program even after my 30 days are up. I just feel that healthy and energetic! I'll post an update once my 30 days are complete. :)


Greg Glassman and Lauren Jenai founded CrossFit, Inc. in 2000.[14][15] The company was conceived a few years earlier, in 1996, as Cross-Fit.[16] The original CrossFit gym is in Santa Cruz, California, and the first affiliated gym was CrossFit North in Seattle, Washington; there were 13 by 2005, and today there are more than 13,000.[6] Coaches associated with CrossFit include Louie Simmons, John Welbourn, Bob Harper, and Mike Burgener.[17]
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