Greg Glassman and Lauren Jenai founded CrossFit, Inc. in 2000. The company was conceived a few years earlier, in 1996, as Cross-Fit. 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. Coaches associated with CrossFit include Louie Simmons, John Welbourn, Bob Harper, and Mike Burgener.
Anything that comes in a box, jar, or bag should be avoided on the paleo diet—as should anything that just wasn't consumed back then. That means no grains, dairy, added salt, or legumes (including peanuts, beans, lentils, and soybeans), according to Robb Wolf, a former research biochemist, paleo expert, and author of The Paleo Solution. While potatoes are generally outlawed on the diet, Wolff says they are okay to eat sparingly as long as you earn them through exercise (more on that next). Alcohol and honey are also generally considered paleo no-nos, but red wine tends to be the closest option there is to a paleo drink, and honey is far preferred to table sugar or artificial sweeteners.
Research into the weight loss effects of the paleolithic diet has generally been of poor quality. One trial of obese postmenopausal women found improvements in weight and fat loss after six months, but the benefits had ceased by 24 months; side effects among participants included "weakness, diarrhea, and headaches". Any weight loss caused by the diet was merely the result of calorie restriction, rather than a special feature of the diet itself.
Trying to devise an ideal diet by studying contemporary hunter-gatherers is difficult because of the great disparities that exist; for example, the animal-derived calorie percentage ranges from 25% for the Gwi people of southern Africa to 99% for the Alaskan Nunamiut. Descendants of populations with different diets have different genetic adaptations to those diets, such as the ability to digest sugars from starchy foods. Modern hunter-gatherers tend to exercise considerably more than modern office workers, protecting them from heart disease and diabetes, though highly processed modern foods also contribute to diabetes when those populations move into cities.
Realistic Details: I think that this will be more challenging if your culinary experience is limited. A lot of people complain about the difficulty of the recipes. The fact is that if you can make eggs and broil or barbecue meat, or even if you can turn on an oven and toss a salad, you will be fine. You might be a little bored with the food if you are not savvy in the kitchen, but it might help if you are really a novice to get the cookbook in addition to the guide.
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.
Hi Jillian. The natural sugars in fruit really don’t help with my cravings when I’m on a Whole30, so I try to limit them as much as possible. If that’s not a problem for you, you can certainly add more into your daily plan. Personally, my most successful Whole30 was when I went the first 25 days with no fruit whatsoever. Really kicked my sugar cravings to the curb. I was a smoothie girl too.
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?
The first thing you should make from this book? Red Curry Roasted Cauliflower (pg. 242). We've made it FIVE TIMES since we got the book. Super easy and so delicious. If you follow us @gneissspice on instagram, you’ll see dozens of posts of the meals I made from this book. I highly recommend this book, especially if you are debating a Whole30. Nothing is worse than trying to stick to the strict rules, and then have no idea what to eat for dinner. My only complaint about the book would be no mention of portion sizes. I had to head over to their website to find suggestions (they have a cool graphic for this, not sure why they didn’t include it in the book).
CrossFit, Inc. licenses the CrossFit name to gyms for an annual fee and certifies trainers. Besides the standard two-day "Level 1 Trainer Course", specialty seminars include gymnastics, Olympic weightlifting, powerlifting, strongman, running and endurance, rowing, kettlebells, mobility and recovery, CrossFit Kids, CrossFit Football, and self-defense and striking. Other specialized adaptations include programs for pregnant women, seniors, and military special operations candidates. Affiliates develop their own programming, pricing, and instructional methods. Many athletes and trainers see themselves as part of a contrarian, insurgent movement that questions conventional fitness wisdom. In addition to performing prescribed workouts, they follow CrossFit's nutrition recommendations, adopting a paleo and/or zone diet.