To the outside world, though, as Glassman's company has exploded from a cult fitness website to a gym concept primed to have more locations than Curves by the end of 2013, CrossFit can appear risky, unhinged: Here is a fitness routine that has sent people to the hospital, overseen by people who may have had no more than two days of instruction. (Although every real trainer I met had considerable experience and was genuinely excellent, I attended the seminar and passed the test on my fourth day reporting this story. I am, believe me, no fitness savant.) And it's all led by a man who, in a 2006 CrossFit.com comment, wrote, "We have a therapy for injuries at CrossFit called STFU." As in, Shut the f-k up. That's enough to make even the most devoted laissez faire-ists get a little, well, Uncle Pukie.
Meetup has a growing number of paleo groups, now numbering in the dozens. Each has a local message board. They have a map of Paleo Diet Meetups around the world. Initially I tried listing them all here. The number grew and Meetup wasn't letting me find groups in newest order, except for my zip code. You now have to go there to find the one nearest you.
CrossFit, Inc. has also been criticized for having a "cavalier" attitude towards rhabdomyolysis by promoting a character known as "Uncle Rhabdo" (a cartoon clown dying in a dramatic fashion—hooked up to a dialysis machine, with his kidneys and intestines falling on the floor). In response to this criticism, Greg Glassman stated "We introduced (Uncle) Rhabdo because we're honest and believe that full disclosure of risk is the only ethical thing to do."
The aspects of the paleo diet that advise eating fewer processed foods and less sugar and salt are consistent with mainstream advice about diet. Diets with a paleo nutrition pattern have some similarities to traditional ethnic diets such as the Mediterranean diet that have been found to be healthier than the Western diet. Following the paleo diet, however, can lead to nutritional deficiencies such as those of vitamin D and calcium, which in turn could lead to compromised bone health; it can also lead to an increased risk of ingesting toxins from high fish consumption.
People looking for support and community – This is the appeal to CrossFit for me: every CrossFit gym has a really tight-knit community feel to it. You’re not just a membership payment to them; you’re a person that needs support. When Nerd Fitness gyms start popping up (don’t think it won’t happen!), I’ll be drawing a lot of inspiration from CF as to how members are so supportive and inclusive of each other.
The Great Cholesterol Con: The Truth About What Really Causes Heart Disease and How to Avoid It by Dr. Malcolm Kendrick reveals that high cholesterol levels do not cause heart disease; that high-fat diets–saturated or otherwise–do not affect blood cholesterol levels; and that for most men and all women the benefits offered by statins are negligible at best. Other data is also provided that shows that statins have many more side affects than is often acknowledged.
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.'"