That severe carb restriction is meant to keep your body in a state of ketosis, says Alyssa Cohen, R.D. “Ketosis refers to the state of relying on ketone bodies for fuel,” Cohen explains. “Fat is the source used to make ketone bodies, so this diet aims to use fuel from fat, rather than carbohydrates [what our bodies primarily use for energy].” So basically, the keto diet helps you speed up the weight-loss process through fat burning.
In William Calvin's The Ascent of Mind, Chapter 8 he discusses why he thinks that the Acheulian hand-ax (the oldest of the fancy stone tools of Homo erectus) was really a "killer frisbee." He argues that natural selection for throwing accuracy, which requires brain machinery, is the evolutionary scenario for bootstrapping higher intellectual functions. There are many more articles about evolution and human development throughout William's extensive site, though much of it these days is on climate change.

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.
For example, although white potatoes were recorded as being available during the Paleolithic era, they are usually avoided on the Paleo diet because of their high glycemic index. Processed foods are also technically off limits due to an emphasis on fresh foods, but some Paleo diets allow frozen fruits and vegetables because the freezing process preserves most nutrients.
Greg Glassman has gone on record saying he wants the Games to reflect the international impact CrossFit is having. The current format doesn’t allow for that. If you remember the 2018 Games flag ceremony, only a handful of countries were represented. Even then, American flags (Canada included) were the overwhelming majority. BORING! Everyone knows CrossFit is an international sport and our main event should be represented as such. Good Job Glassman!

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]

I started Week 1 feeling optimistic. This isn't hard at all! I told myself. Wrong. Days 2 and 3 hit, and the sugar withdrawal was so real. In my company's kitchen, I stared at the free M&Ms longingly. "All I can think about are gummy worms," I texted my work friends. Instead of eating candy, I scarfed down a banana with sunflower seed butter and felt slightly better.
I am currently prepping for my second Whole 30. I have 3 kids with the youngest being just about 6 months, so I’m taking the time to plan out the first month as well as the reintro month. I am so pleased that you have another whole 30 plan! I do pick and choose and use my own meal planning software, but it’s such an invaluable resource. Best of all my whole family has loved almost every recipe of your that we have tried! Keep them coming, please!
Paleonutrition by Mark Q. Sutton, Kristin D. Sobolik, and Jill K. Gardner is the analysis of prehistoric human diets and the interpretation of dietary intake in relation to health and nutrition. This is a substantial text that combines background to paleonutrition, an extensive bibliography, a discussion on methods, and case studies. Published February 23, 2010.
I experienced some funky physical symptoms during the first 10 days or so, but this is pretty typical of a Whole30. I would feel great, and then the next day I would feel tired, achy, and bloated. Depending on what your diet was like before you started the Whole30, you’re bound to get hit by some sort of detoxing symptoms. If you’re doing this after eating a lot of sugar and processed food, your symptoms might be a bit more severe. However, the book assures you it’s normal, and it will even out. According to the authors, the bacteria in your gut are shifting and creating a new landscape. Your body is getting used to this new diet of protein and a ton of veggies with the absence of sugar. Things adjust and shift. For me, this meant a couple days of feeling off.

In his gruff way, Glassman recounted his story for the faithful: how a novel, exquisitely punishing system of exercise he had designed, centered on the WOD (workout of the day; it's pronounced "wad"), had started in his backwater Santa Cruz gym, then turned into an online phenomenon, then paved the way for 6,775 CrossFit locations (soon to be 10,000), and now was fast becoming its own sport. (This month, the finals of the CrossFit Games will be broadcast live on ESPN2.) He explained the contrarian way he thinks about the CrossFit business (he shuns most new sources of revenue) and how he goes about protecting its brand (viciously).
For the handstand push-up, prior to the start of the workout, athletes must measure out and mark a box measuring 36in wide by 24in from the floor. This is for the athlete’s hand placement. The athlete’s palms may not extend beyond this box over the course of any handstand push-up repetition, however, their fingers may. The box must be marked out clearly to be visible in the video. Each repetition begins with the kicking upside down, onto the wall, with the athlete’s hands clearly inside of the box, arms and shoulders locked out, body vertically aligned, with feet in contact with the wall. Once this position is established, the athlete may lower their body down to bring their head in contact with the ground. From here, the athlete may use any style of handstand push-up, including kipping or strict, to press and finish with their body vertically aligned, arms and shoulders locked out, and feet in contact with the wall. Each rep must have the athlete’s head make contact with the floor, and finish in this extended position. If at any point in time an athlete kicks off the wall, they must first establish the locked out finish position, with body vertically aligned before lowering down to begin repetitions. If over the course of a repetition, the athlete’s hands leave the marked box, that rep shall not count. However, if the athlete is resting with their head on the floor, they may adjust their hands (which may have them come out of the box,) but must return them to the box before attempting to complete another repetition. If head cushioning is used, please ensure the head is still level with the hands, or your score will not count

The evolutionary discordance is incomplete, since it is based mainly on the genetic understanding of the human diet and a unique model of human ancestral diets, without taking into account the flexibility and variability of the human dietary behaviors over time.[26] Studies of a variety of populations around the world show that humans can live healthily with a wide variety of diets and that humans have evolved to be flexible eaters.[27] Lactose tolerance is an example of how some humans have adapted to the introduction of dairy into their diet. While the introduction of grains, dairy, and legumes during the Neolithic revolution may have had some adverse effects on modern humans, if humans had not been nutritionally adaptable, these technological developments would have been dropped.[28]
In 2011, the Games adopted an online qualification format, facilitating participation by athletes worldwide. During the five-week-long "CrossFit Open", one new workout is released each week. Athletes have several days to complete the workout and submit their scores online, with either a video or validation by a CrossFit affiliate. Since the Open is available to any level of athlete, many affiliates encourage member participation and the number of worldwide participants can be in the hundreds of thousands.[48]
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