Paleo critics point out that not all grains are created equal—whole grains do not spike your blood sugar as much as refined grains. Even so, paleo dieters still steer clear of grains because they contain different compounds and proteins like gluten, lectins and phytates, which they claim cause inflammation in the body and block other nutrients from being absorbed. Paleo critics say these compounds are not a problem unless you have an allergy or sensitivity.
But critics argue that the unlimited amount of red meat the paleo diet allows may have an adverse effect on heart health in people with diabetes, as research links eating red meat in excess to poor heart health. (11)  If you have diabetes and don’t moderate your red-meat intake, this could be a big problem, as people with diabetes are 2 times as likely to die of heart disease as people who do not have diabetes. (12)
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For many years Arthur De Vany Ph.D. has been writing a book called Evolutionary Fitness on "What Evolution Teaches Us About How to Live and Stay Healthy." The diet he follows fits into my core diet definition. He may have been the first one to use the paleo diet to maximize fitness. His current site is Art's Blog on Fitness, Health, Aging, Nutrition and Exercise [archive.org].
It seems unlikely, from today's perspective, that a rudimentary site featuring a daily workout, a daily link to other fitness sites, and occasionally a photo of an athlete could generate a passionate viral following.But then you probably haven't tried a WOD. To a skeptical initiate, the commitment to the WOD seems odd: It might be just 10 minutes of alternating five reps of deadlifts with 100-yard sprints. Simple enough, you think, as you picture yourself running around like a beheaded, powerlifting chicken. (In conventional gyms, CrossFit workouts draw stares.) But when you actually do that workout, halfway through you hit the baptismal version of what early CrossFitters fondly called the mess-you-up moment--the recognition that there's devilish magic in this offbeat combination. In a few minutes, you're the sorest you've been in years. You're not sure you will survive. It's an adrenaline rush. For anyone bored with standard weights routines or the elliptical, it's addictive.
“Hartwig, a sports nutritionist and cocreator of the Whole30 diet plan, packs her fourth book on the subject with 150 recipes that are, as the cover proclaims in all-caps, “totally compliant.” That means heavy emphasis on eggs, meat, fish, and fresh vegetables, but no grains, dairy, legumes or added sugars. Whether or not one buys into Whole30, there is no denying that Hartwig has come up with a clever array of healthy and flavorful dishes. Highlights include Asian beef zoodle (zucchini noodles) soup, which is similar to Vietnamese pho but uses zucchini noodles, and grilled Jamaican jerk salmon with fresh mango salsa. Many of the recipes come courtesy of guest cooks from various food blogs. For instance, Michelle Smith, from the Whole Smiths blog, contributes cherry-chipotle BBQ chicken thighs, with the fruit providing the sweetness and ground chipotle bringing the heat. Veteran food and cocktail photographer Brent Herrig drives home the point that a burger served on a tomato slice is as delectable as one on a bun, and that meatballs do just fine in a cream sauce made with coconut milk. (Dec.)” —Publishers Weekly
One of the most interesting experiments comes after you finish Whole30 and slowly start adding foods back into your diet. You get to test how foods you stopped eating during the month affected you after you added them back in. The most shocking for me? Legumes make me feel bloated (they just do!). When I added gluten back, the next day I broke out in a rash. And now that I've curbed my "sugar dragon" (that's what they call sugar cravings on Whole30), I try to avoid sugar as much as humanly possible. In fact, December came after my Whole30 experience, so of course I indulged in a few glasses of wine at a holiday party, and BOOM — my skin broke out. Now I have a better idea of what to avoid altogether, and what to watch if I do decide to indulge.
Greg Glassman and Lauren Jenai founded CrossFit, Inc. in 2000.[14][15] The company was conceived a few years earlier, in 1996, as Cross-Fit.[16] The original CrossFit gym is in Santa Cruz, California, and the first affiliated gym was CrossFit North in Seattle, Washington; there were 13 by 2005, and today there are more than 13,000.[6] Coaches associated with CrossFit include Louie Simmons, John Welbourn, Bob Harper, and Mike Burgener.[17]
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