Foods allowed during the program include meat, nuts, seeds, seafood, eggs, vegetables, and fruits. During the Whole30, participants are advised not to count calories or to weigh themselves. After the program is complete, participants are counseled to strategically reintroduce foods outside the endorsed Whole30 list, document the health consequences and culinary value of these additions, and determine if the addition is desired. The program's founders believe that sugar, grains, dairy, alcohol, and legumes affect weight, energy, and stress levels. Losing weight is not a focus of Whole30; calorie-counting and weigh-ins are not allowed.
CrossFit Inc. is the developer and provider of the CrossFit® Fitness Program and a recognized worldwide leader in functional fitness. Founded by Greg Glassman and built on the foundations of constantly varied, high-intensity functional movements, education and collaborative competition, CrossFit-brand workouts develop strength and fitness while cultivating community and camaraderie in each of the more than 14,000 affiliated gyms in CrossFit’s global network. CrossFit Inc. is a leading accredited certificate issuer for physical training professionals worldwide and offers specialty certificate programs in addition to its core curriculum. CrossFit Inc. publishes the CrossFit Journal, promotes physical and cognitive health and fitness through the CrossFit Kids Foundation, and created and operates the CrossFit Games, an annual competition where elite athletes compete to be named the Fittest on Earth™. To learn more, visit CrossFit.com, Facebook.com/CrossFit or YouTube.com/CrossFitHQ.
The idea is that these are the foods that our bodies were designed to eat while many of the heavily processed modern foods that fill our diets today contribute to chronic disease and health problems. Proponents of the diet suggest that a well-planned Paleo diet could lead to improvements in many aspects of health, such as enhanced weight loss and reduced inflammation.
In Defense of Food: An Eater's Manifesto by Michael Pollan gives a guided tour of 20th century food science, a history of "nutritionism" in America and a look at the marriage of government and the food industry. Then the book presents a commonsense shopping-and-eating guide, which like the paleo diet focuses on shopping the perimeter of the supermarket. He also now has a much shorter Food Rules: An Eater's Manual.
CrossFit is promoted as both a physical exercise philosophy and a competitive fitness sport, incorporating elements from high-intensity interval training, Olympic weightlifting, plyometrics, powerlifting, gymnastics, girevoy sport, calisthenics, strongman, and other exercises. It is practiced by members of over 13,000 affiliated gyms, roughly half of which are located in the United States, and by individuals who complete daily workouts (otherwise known as "WODs" or "workouts of the day"). CrossFit has been criticized for allegedly causing people to suffer from unnecessary injuries and exertional rhabdomyolysis.