Excluding foods. The exclusion of entire categories of commonly eaten foods like whole grains and dairy requires frequent label reading in the supermarket and in restaurants. It may also increase the risk of deficiencies such as calcium, vitamin D, and B vitamins, if these nutrients are not consistently eaten from the allowed foods or a vitamin supplement. For example, there are some nondairy calcium-rich foods that are absorbed well by the body such as collard and turnip greens or canned bone-in sardines and salmon, but you would have to eat five or more servings of these greens and fish bones daily to meet recommended calcium needs. (Note that some greens like spinach that are touted to be calcium-rich also contain oxalates and phytates that bind to calcium so very little is actually absorbed.) One small, short-term intervention study of healthy participants showed a 53% decrease from baseline in calcium intake after following a Paleo diet for three weeks.  Furthermore, the exclusion of whole grains can result in reduced consumption of beneficial nutrients such as fiber and thus may increase one’s risk for diabetes and heart disease.
This book was a surprise hit for me! I’ll be honest, I wasn’t expecting much, and only bought it because I was actually doing a Whole30 in January 2017 (it went great! I recommend it—I assume you’re thinking about it if you’re reading this review). We’ve been vegetarian for about 7 years, so eating and cooking so much meat, well, let’s just say I needed some help. The first thing I was impressed with? The recipes are very creative! They are easy to follow, don’t take a lot of time (I have a baby and a toddler and work from home), I particularly loved the slow-cooker recipes that make extra (beef roast, etc) that is then used for different recipes later in the week. Genius!
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.
A 2015 study in the Journal of the American College of Cardiology found that 76 people who followed the Paleo diet for 60 days (as well as those who followed vegan, Mediterranean and DASH plans for the same length of time) lost an average of 9 pounds and showed improvement in their blood pressure levels. The effects were greatest and most sustained among people who also attended regular diet support group meetings.
A study published in the European Journal of Clinical Nutrition compared the benefits of following a Paleo diet versus a diet recommended by the American Diabetes Association in 24 participants with diabetes. After two weeks, researchers found that the Paleo diet led to greater improvements in blood sugar levels and insulin sensitivity than the conventional diabetes diet. (4)
He developed wacky routines: He had clients race their way through repetitions on a weight machine, and at one facility, he had them scramble up a 30-foot column in the middle of the room. Eventually, the owner of that gym welded disks to the pole to make him stop. "They added a hazard 15 feet up," Glassman cracked to clients, before signaling them to go up anyway. He got kicked out of that gym. He got kicked out of several gyms. "I've never wanted to be told what to do," Glassman says. "I think it's genetic."
Cordain admits that meat leads to plaque and increases cholesterol where plants wouldn’t. And science establishes that plaque and cholesterol lead to heart attacks and strokes. But Cordain argues that plaque alone is insufficient to cause harm. Rather, it is plaque combined with inflammation that causes heart attacks and strokes. So avoid acid, salt, legumes, wheat, starchy vegetables, dairy, oil, fatty meats, and grains because they cause inflammation. But if both science and Cordain agree that plaque is a necessary part of the heart-disease equation—and that meat causes plaque—why should we follow Paleo rather than just forgo meat?
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.
These are great! Thanks. I was wondering what your budget is for all this food. I seem to spend much more money for groceries when we are on whole 30. I try to shop at Costco and discount stores as I can, but it still seems like a lot. My shopping list I created for week one on my previous w30 was like $350 for a family of 5 (including food for one vegan). Is this normal?
Eat low to moderate amounts of fruits and nuts. Try to eat mostly fruits low in sugar and high in antioxidants like berries as well as nuts high in omega-3, low in omega-6 and low in total polyunsaturated fat like macadamia nuts. Consider cutting off fruits and nuts altogether if you have an autoimmune disease, digestive problems or are trying to lose weight faster.
Good Calories, Bad Calories: Fats, Carbs, and the Controversial Science of Diet and Health by Gary Taubes expounds on his 2002 article in the NY Times (What if It's All Been a Big Fat Lie?) and then in Science Magazine (see below). He shows how public health data has been misinterpreted to mark dietary fat and cholesterol as the primary causes of coronary heart disease. Deeper examination, he says, shows that heart disease and other diseases of civilization appear to result from increased consumption of refined carbohydrates: sugar, white flour and white rice. Or in other words, without using the word Paleolithic, he justifies the paleo diet. Here is an excellent chapter by chapter summary of the book [archive.org].
Richard Nikoley has the blog Free The Animal. He loves meat eating. His diet is near paleo, with the addition of some gray-area foods that he likes. These days most of his posts are on food. One recent trend in the paleo community is trying to optimize the proportions of the foods eaten. If you've read my definition you'll know that I simply define the diet as foods in and out. One of Richard's posts: Optimality: A Fool's Errand? has produced a long discussion of this trend.
This 2003 CrossFit Journal article captures an early conception of a universal, multi-event test of fitness that laid the foundation for CrossFit competition, including what would become the CrossFit Open and the CrossFit Games. The design requirements for such a test "included but were not limited to the following: quantifiable results; consistency with the CrossFit fitness concept; raising our commitment to improving absolute strength, relative strength, and gymnastic foundations; balancing intrinsic abilities of smaller and larger athletes; emphasizing exercises critical to and foundational to advanced training; mixing training demands within each test and, of course, over the total competition; a design that would identify an athlete’s weaknesses and possibly stand as a workout plan for improving overall fitness; and, finally, we wanted to design a competition that would be 'hard as hell.'"