Some randomized controlled trials have shown the Paleo diet to produce greater short-term benefits than diets based on national nutrition guidelines, including greater weight loss, reduced waist circumference, decreased blood pressure, increased insulin sensitivity, and improved cholesterol. However these studies were of short duration (6 months or less) with a small number of participants (less than 40). [4-6]
The Santa Cruz mornings and evenings became packed with fitness clients. The stretch of day in between grew into a time of study and reflection. He had a friend bring in printouts of fitness articles the friend had found using his newfangled Internet connection. "I went through thousands of pages like that," says Glassman. "When I finally got a computer, there was nothing on the Web on fitness I hadn't already seen."
"CrossFit is not a specialized fitness program, but a deliberate attempt to optimize physical competence in each of 10 recognized fitness domains," says founder Greg Glassman in the Foundations document. Those domains are cardiovascular and respiratory endurance, stamina, strength, flexibility, power, speed, coordination, agility, balance, and accuracy.[33]
The Paleo Answer: 7 Days to Lose Weight, Feel Great, Stay Young by Loren Cordain. The author shows you how to supercharge the Paleo diet for optimal lifelong health and weight loss. Featuring a new prescriptive 7-day plan and surprising revelations from the author's original research, it's the most powerful Paleo guide yet. Published December 20, 2011.

Your only job during the Whole30 is to focus on making good food choices. You don’t need to weigh or measure, you don’t need to count calories, you don’t need to purchase everything organic, grass-fed, pastured, or local. Just figure out how to stick to the Whole30 rules in any setting, around every special circumstance, under any amount of stress… for 30 straight days. Your only job? Eat. Good. Food.
Lastly, HAVE FUN. I believe strongly that the lifestyle changes that really “stick” are the ones that are fun and exciting. Continue to foster your culinary curiosity, and play around in the kitchen. Not only will you eat healthier, but you’ll develop skills and gain knowledge that’ll make you even more awesome than you are right now (as if that’s even possible).
In 2011, ESPN began to broadcast the CrossFit Games, with live coverage streamed through ESPN3, and some television coverage on ESPN2. As the event grew, ESPN expanded its television coverage; in 2014, the network entered into a multi-year deal to continue broadcasting the CrossFit Games, and coverage expanded to nine-and-a-half hours on ESPN and ESPN2 by 2015.[36] In 2017, the event began a new broadcast arrangement with CBS Sports, with television coverage on CBS Sports Network, and a total of 40 hours of digital streaming coverage. CrossFit also streamed coverage through Facebook and their website.[37]
The Paleo diet includes nutrient-dense whole fresh foods and encourages participants to steer away from highly processed foods containing added salt, sugar, and unhealthy fats. However, the omission of whole grains, dairy, and legumes could lead to suboptimal intake of important nutrients. The restrictive nature of the diet may also make it difficult for people to adhere to such a diet in the long run.  More high-quality studies including randomized controlled trials with follow-up of greater than one year that compare the Paleo diet with other weight-reducing diets are needed to show a direct health benefit of the Paleo diet. Strong recommendations for the Paleo diet for weight loss cannot be made at this time.
The following links tend towards news reports of scientific studies that point out some positive aspect of the paleo diet. If you are looking for current news reports, I suggest signing up for Google Alerts for the Type: News. I have three set up, for: "caveman diet," "paleo diet," and "paleolithic diet." You can also set them up for blogs and/or websites.

Since then, I've reintroduced legumes, soy, added sugar, and dairy back into my diet. Since I'm lactose intolerant, I was most afraid of dairy, but it seems as of my dairy intolerance has disappeared, which is an unexpected positive. I definitely sleep worse, though, and feel more bloated when I enjoy dairy or carbs with gluten. So going forward, I'll be eating these with more moderation than before.
On 4 June 2014, CrossFit uploaded a "parody video to their Facebook page" of Jesus, featuring concepts such as the "Holy Trinity of exercise".[83] Yasmine Hafiz wrote in The Huffington Post that some "viewers are outraged at the disrespectful use of a Christian symbol", with one user asking "on what planet is it comical or encouraged to mock someones belief?"[84][83]
A metaresearch group at Tilburg University in the Netherlands investigates scientists’ research methods and operations, scrutinizing questionable practices such as selective reporting of statistical tests and data massaging. The group instead advocates for practices such as preregistering studies and making experimental data immediately available for open external review and verification. Its members are optimistic that “the perverse incentives of careerist academia, to hoard data and sacrifice rigor for headline-generating findings, will ultimately be fixed.”
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