According to Adrienne Rose Johnson, the idea that the primitive diet was superior to current dietary habits dates back to the 1890s with such writers as Dr. Emmet Densmore and Dr. John Harvey Kellogg. Densmore proclaimed that "bread is the staff of death", while Kellogg supported a diet of starchy and grain-based foods. The idea of a Paleolithic diet can be traced to a 1975 book by gastroenterologist Walter Voegtlin,:41 which in 1985 was further developed by Stanley Boyd Eaton and Melvin Konner, and popularized by Loren Cordain in his 2002 book The Paleo Diet. The terms caveman diet and stone-age diet are also used, as is Paleo Diet, trademarked by Cordain.
Soon, Glassman started advertising seminars. For $4,500 plus airfare and accommodations, he would come to you. Or, for $1,000 a head, people could come to Soquel. He would lecture on everything he had concluded about fitness and run participants through workouts. Meanwhile, CrossFit.com devotees were attracting followers of their own. Robb Wolf, a biochemist and former powerlifter from Seattle, visited the Glassmans in early 2002. He and some friends were starting a little gym--could they call it CrossFit?
Sex With Your Pants On (SWYPO) is a term used to describe the idea of recreating treats such as pancakes, brownies, or pizza with Whole30 ingredients, and is strongly cautioned against. The Hartwigs feel that if you’re trying to recreate a pizza made out of cauliflower crust in order to scratch a craving itch, then you’re kind of missing the point. To quote the Whole30 website, “You can tell yourself it’s okay, it’s still pretty good, you’re totally satisfied … but that’s kind of a lie. Because you know exactly how good pants-less sex feels.”
You never, ever, ever have to eat anything you don’t want to eat. You’re all big boys and girls. Toughen up. Learn to say no, or make your mom proud and say, “No, thank you.” Learn to stick up for yourself. Just because it’s your sister’s birthday, or your best friend’s wedding, or your company picnic does not mean you have to eat anything. It’s always a choice, and we would hope that you stopped succumbing to peer pressure in 7th grade.
However, placing certain food groups on your "do not eat" list does have the potential work against you. "When a person sees the foods as 'off limits,' and consuming them is somehow breaking a rule and therefore sees themselves as a 'bad person,' mental damage is what is going to ensue long term versus the 30-day health benefits that you will receive," Smith cautions.
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.  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.
Is time-restricted eating effective for weight loss? Time-restricted eating is a diet plan that requires people to limit themselves to only eating during specific hours of the day and then fasting outside of this period. Here, we look at what time-restricted eating is, whether or not it works, and what effect it has on muscle gain. We also provide tips for beginners. Read now
You likely will lose weight on Whole30—“many people do appear to lose weight while following the plan, likely due to the decreased reliance on processed foods and increased consumption of whole foods, such as fruits and vegetables,” says Cohen. But it wasn’t designed for weight loss, and once the 30 days are over, you may gain all the weight back as you reintroduce your body to a normal diet.
Cordain argues that chimpanzees and horses avoid meat, and they have big bellies that we would have if we didn’t ditch plants for meat. He also says meat increased human brain size, and decreased stomach size so we can have the six-pack abs that chimps can’t. But I looked at his endnotes with citations to research and couldn’t find the source for these theories. I also couldn’t find research showing that legumes and grains were invented by humans.
The Whole30 is not a diet, a weight-loss plan or quick fix – it’s designed to “change your life,” the founders say, by eliminating cravings, rebalancing hormones, curing digestive issues, improving medical conditions and boosting energy and immune function. The theory behind it is that all sorts of physical and mental health issues – ranging from acne to depression to allergies – could be due to your diet. But you can’t know which foods are to blame for what ails you unless you cut out all traces of sugar, alcohol, grains, dairy and legumes for 30 days. By day 31, you’ll be free from your food fog and may not even miss your nightly wine ritual or morning muffin fix. If and when you reintroduce food groups, your body’s reaction will tell you which foods you should continue to avoid – or at least limit.
Additionally, the Paleo diet puts a heavy emphasis on meat products. For this reason, the Paleo diet may not be suitable for everyone, and you’re unlikely to find a Paleo diet vegetarian or vegan modification out there. While meat in moderation is perfectly healthy, excessive meat consumption may not be. A high intake of red meat, for example, has been linked to an increased risk of mortality and colorectal cancer. (6, 7)
Joel Runyon is the founder of Ultimate Paleo Guide and CEO of Paleo Meal Plans. He's a precision nutrition, and Gym Jones Level 1 certified, and helped millions of people get healthy and lose weight since 2012. Joel is also an ultra runner and endurance athlete - and in 2017, he became the the youngest person to run an ultra marathon on every continent in the world to build 7 schools with Pencils of Promise in developing countries.Follow him on Twitter, Instagram, Athlinks and read his full bio here.
Book-lovin’ Whole30 eaters should also pick up a copy of my New York Times bestselling cookbook, Nom Nom Paleo: Food for Humans, and my follow-up recipe book, Ready or Not! Both are packed with new and classic recipes—many of which can’t be found anywhere else. Plus, the vast majority of them are Whole30-compliant! Here’s a downloadable list of the 100+ Whole30 recipes in my first book, and here’s the Recipe Index in my second book, which identifies the 120+ Whole30 friendly dishes contained in its pages.
CrossFit, Inc. does not dispute that its methodology has the potential to cause rhabdomyolysis. The company states that exertional rhabdomyolysis can be found in a wide variety of sports and training populations and argues that its critics have conflated CrossFit's high awareness of rhabdomyolysis with high risk. One CrossFit spokesman stated that "ESPN's report on the 53 deaths in US triathlons from 2007 to 2013 should have put the issue to rest."
Legumes are members of a large family of plants that have a seed or pod. This category includes all beans, peas, lentils, tofu and other soyfoods, and peanuts. Legumes are not allowed on paleo because of their high content of lectins and phytic acid. Similar to grains, this is a point of controversy in the scientific community. In fact, lots of research supports eating legumes as part of a healthy diet because they are low in fat and high in fiber, protein and iron.
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.