<div><p><b>Humans evolved on a diet very different from today's eating habits.&nbsp;<span>To be healthier, leaner, stronger and fitter, we must re-think our diet and remove some of the food groups we consider basic.</span></b></p></div><div><p><i>Except</i><br></p><p><span>Paleo fans tend to overlook the fact that hunter-gatherers were not models of pristine health. Palaeolithic humans suffered from parasites, infectious diseases, and even atherosclerosis (hardening of the arteries).</span><i><br></i></p></div>

Paleo concept

Health

<ul><li><b>Animals</b> (especially a "whole animal" approach, including organs, bone marrow, cartilage, and organs).</li><li><b>Animal products</b> (such as eggs or honey).</li><li><b>Vegetables and fruits.</b></li><li><b>Raw nuts and seeds.</b></li><li><b>Added fats</b> (like coconut oil, avocado, butter, ghee).</li></ul>

What to eat 

<div><ul><li><strong>Grains,</strong> although&nbsp;research suggests eating whole grains improve our health and appear to be neutral when it comes to inflammation.</li><li><strong>Heavily processed oils,&nbsp;</strong>such as canola and soybean oil.</li><li><strong>Legumes,</strong> although research suggests the benefits of legumes outweigh their anti-nutrient content. Cooking eliminates most anti-nutrient effects. Some anti-nutrients may even be good.</li><li><b>Dairy.</b></li></ul></div><div></div>

What to avoid

<ul><li>The evolutionary arguments <b>don't hold up.</b></li><li><b>Evidence</b> for excluding dairy, legumes, and grains <b>isn't strong</b> (yet).</li><li>A <b>one-size-fits-all</b> "best diet" approach <b>doesn't work.</b></li></ul>

The problem with Paleo

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<p>You've probably heard about the Paleo diet; maybe you've even tried it. The "primal eating" trend is everywhere.</p>
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<p>Paleo, of course, encourages us to eat like our ancient ancestors did.</p>
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<div>
<p>The concept is this: Humans evolved on a diet very different from today's eating habits.</p>
</div>
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<p>Therefore, the Paleo proponents argue, to be healthier, leaner, stronger and fitter, we must re-think our diet and remove some of the food groups we consider basic.</p>
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<p>Promising everything from fat loss to more energy and clearer skin, Paleo certainly has appeal.</p>
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<p>But what is Paleo really? Is it a diet worth trying?</p>
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<div><strong>Why "Paleo": The basic concept of eating primal</strong> </div>
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<p>To understand Paleo thinking, we've got to go back in time. (My DeLorean is parked right outside.)</p>
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<p>Let's have a quick look at <a href="http://www.ncbi.nlm.nih.gov/pubmed/16441938">what our ancestors ate</a>:</p>
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<ul><strong>60 million years ago:</strong> Our oldest cousins, the earliest primates, ate a lot like, well, primates. They subsisted mainly on fruit, leaves, and insects. </ul> 
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<p><strong>2.6 million years ago:</strong> Evolution at work! Humans started using tools and fire, and moved to a hunter-gatherer diet. </p>
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<p><strong>10,000 years ago:</strong> At this point, "agriculture" had taken the world by storm. </p>
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<p>Paleolithic humans definitely got some eating habits right. In general, <a href="http://www.ncbi.nlm.nih.gov/pubmed/16441938">they consumed</a>:</p>
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<ul>
	<li>three times more produce than the typical American,</li>
	<li>more fiber,</li>
	<li>more protein,</li>
	<li>more omega-3 fatty acids,</li>
	<li>more unsaturated fat,</li>
	<li>more vitamins and minerals,</li>
	<li>and much less saturated fat and sodium.</li>
</ul> 
</div>
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<p>That said, Paleo fans tend to overlook the fact that hunter-gatherers were not models of pristine health. Paleolithic humans suffered from parasites, infectious diseases, and even <a href="http://www.thelancet.com/journals/lancet/article/PIIS0140-6736(13)60598-X/abstract">atherosclerosis</a> (hardening of the arteries).</p>
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<div><strong>The dangers of our modern diet</strong> </div>
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<p>Fast forward to today. Our diet has changed significantly, and not necessarily for the better. For one thing, it contains far more processed, packaged and commercially-produced foods than ever.</p>
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<p>Case in point: The <a href="http://www.nutritionj.com/content/12/1/59">top six calorie sources</a> in the U.S. diet today are:</p>
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<ul>
	<li>grain-based desserts (cake, cookies, etc.),</li>
	<li>yeast breads,</li>
	<li>chicken-based dishes (and you know that doesn't mean roast chicken),</li>
	<li>sweetened beverages,</li>
	<li>pizza,</li>
	<li>and alcoholic drinks.</li>
</ul> 
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<p>Yikes. Not only are these foods not ancestral, some of them could barely be called food.</p>
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<p>Meanwhile, <a href="https://www.huffpost.com/entry/ama-obesity-disease_b_3479179">obesity</a>, diabetes, and cardiovascular diseases have <a href="http://www.ncbi.nlm.nih.gov/pubmed/16595758">dramatically increased</a> over the past 50 years.</p>
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<p>The Paleo claim that our modern Western diet isn't healthy <a href="http://www.dovepress.com/the-western-diet-and-lifestyle-and-diseases-of-civilization-peer-reviewed-article-RRCC">rings true</a>. So what should we do to make it better?</p>
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<div><strong>According to Paleo: What to eat and what to avoid</strong> </div>
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<p>Paleo fans suggest we return to the meat and produce-based diet of our past. Specifically, the Paleo dietary model encourages us to base our diets on the following foods:</p>
</div>
<div>
<ul>
	<li>animals (especially a "whole animal" approach, including organs, bone marrow, cartilage, and organs),</li>
	<li>animal products (such as eggs or honey),</li>
	<li>vegetables and fruits,</li>
	<li>raw nuts and seeds,</li>
	<li>and added fats (like coconut oil, avocado, butter, ghee).</li>
</ul> 
</div>
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<p>Notice what's missing from the list? Paleo tells us to avoid grains (even "whole grains"), heavily processed oils (such as canola and soybean oil), and processed foods in general.</p>
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<p>Legumes and dairy are typically off limits too, though some guidelines allow these foods as the Paleo diet continues to "evolve."</p>
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<div><strong>Should you stop eating grains and legumes?</strong> </div>
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<p>We already know the above list of processed foods and treats aren't good for us -- but what about whole grains and legumes?</p>
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<p>Let's tackle legumes first. Paleo people say we shouldn't eat legumes because of their high concentration of anti-nutrients like <a href="http://www.precisionnutrition.com/all-about-lectins">lectins</a> or <a href="http://www.precisionnutrition.com/all-about-phytates-phytic-acid">phytates</a>. Supposedly that reduces their nutritional value to zilch.<br> <br> Fortunately for bean fans, that's not true.</p>
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<p>Research suggests that the <a href="http://www.ncbi.nlm.nih.gov/pubmed/23398387">benefits of legumes</a> outweigh their anti-nutrient content. <a href="http://www.ncbi.nlm.nih.gov/pubmed/19774556">Cooking </a>eliminates most anti-nutrient effects, and some anti-nutrients (like lectins) may even be <a href="http://www.ncbi.nlm.nih.gov/pubmed/11198165">good for us</a>.<br> <br> As for <a href="http://www.precisionnutrition.com/all-about-grains">grains</a>, Paleo proponents say grains can lead to inflammation and related health problems. This can be true for people with celiac disease ( <a href="http://www.ncbi.nlm.nih.gov/pubmed/22850429">about 1 percent of the population</a>) and for those with non-celiac gluten sensitivity.</p>
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<p>But a substantial body of <a href="http://www.ncbi.nlm.nih.gov/pubmed/20685951">reliable research</a> suggests that eating whole grains improves our health. At the very least, whole grains appear to be neutral when it comes to inflammation.<br> <br> Bottom line on grains and legumes: Completely eliminating these important foods from our diet is probably a bad idea.<br> <br> <strong>The problem with Paleo</strong></p>
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<p>Paleo-style eating has a lot of good qualities: It emphasizes whole foods, lean proteins, vegetables, fruits, and healthy fats. Incorporating more of these foods into your diet would likely be a big improvement. <br> <br> However, the Paleo diet has some flaws. The <a href="http://www.pnas.org/content/110/26/10513.abstract">evolutionary arguments don't hold up</a>, and the evidence for excluding dairy, legumes, and grains isn't strong (yet).<br> <br> But my biggest concern is this: A one-size-fits-all "best diet" approach doesn't work.<br> <br> Strictly following a list of "good" and "bad" or "allowed" and "not allowed" foods is problematic for most people.</p>
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<p>Even more, long-term, it's tough to be consistent on a strict diet regime like Paleo. Sure, most people can follow it for weeks or months. Maybe even years. But decades? That's unlikely.</p>
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<p>Of course, without being consistent, you can't make progress.<br> <br> <strong>What you can do today</strong><br> <br> Instead of signing up for a strict lifestyle template, think about small changes you can make in your "modern" life that support what your "ancient" body needs.</p>
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<p>For example, look for simple ways incorporate a bit of what's good about the ancestral lifestyle into your day. Could you:</p>
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<div>
<ul>
	<li>Eat a little more fresh food, like adding some fresh fruit or vegetables to dinner tonight?</li>
	<li>Consider replacing a bit of the processed food you might normally be eating? (Not all of it, just some.)</li>
	<li>Get outside for some movement and fresh air?</li>
	<li>Go to bed a little earlier to get a good night's sleep?</li>
</ul> 
</div>
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<p>These small actions -- done consistently -- can do much more for your health and happiness long-term. And consistency is more important than any food list or evolutionary theory.</p>
</div>
<div><em>John Berardi, Ph.D. is a founder of <a href="http://www.precisionnutrition.com/">Precision Nutrition</a>, the world's largest online nutrition coaching company. He also sits on the health and performance advisory boards of Nike, Titleist and Equinox.</em> </div>
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<p>Dr. Berardi was recently selected as one of the 20 smartest coaches in the world by livestrong.com, the internet's most popular fitness site.</p>
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<p>In the last five years, Dr. Berardi and his team have personally helped over 30,000 people improve their eating, lose weight, and boost their health through their renowned <a href="http://www.precisionnutrition.com/coaching">Precision Nutrition Coaching</a> program.</p>
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<div>
<p>Almeida CC, et al. Beneficial effects of long-term consumption of a probiotic combination of Lactobacillus casei Shirota and Bifidobacterium breve Yakult may persist after suspension of therapy in lactose-intolerant patients. Nutr Clin Pract. 2012 Apr;27(2):247-51.</p>
</div>
<div>
<p>Anderson A, et al. Whole-grain foods do not affect insulin sensitivity or markers of lipid peroxidation and inflammation in healthy, moderately overweight subjects. J Nutr. 2007;137(6):1401-1407.</p>
</div>
<div>
<p>Aune D, et al. Dietary fibre, whole grains, and risk of colorectal cancer: systematic review and dose-reponse meta-analysis of prospective studies. BMJ. 2011;343:d6617.</p>
</div>
<div>
<p>Bouchenak, Malika, and MyriemLamri-Senhadji. 2013. Nutritional Quality of Legumes, and Their Role in Cardiometabolic Risk Prevention: A Review. Journal of Medicinal Food 16(3): 185-198.</p>
</div>
<div>
<p>Caminero A, et al. Diversity of the cultivable human gut microbiome involved in gluten metabolism: isolation of microorganisms with potential interest for coeliac disease. FEMS Microbiol Ecol. 2014 May;88(2):309-19.</p>
</div>
<div>
<p>Campos-Vega, Rocio, Guadalupe Loarca-Pi&#241;a, and B. Dave Oomah. 2010. Minor Components of Pulses and Their Potential Impact on Human Health. Food Research International 43(2): 461-482.</p>
</div>
<div>
<p>Carmody, Rachel N., and Richard W. Wrangham. 2009. The Energetic Significance of Cooking. Journal of Human Evolution 57(4): 379-391.</p>
</div>
<div>
<p>Carrera-Bastos P, et al. The western diet and lifestyle and diseases of civilization. Research Reports in Clinical Cardiology. 2001;2:15-35.</p>
</div>
<div>
<p>Cerling TE, et al. Diet of Theropithecus from 4 to 1 Ma in Kenya. Proc Natl Acad Sci U S A. vol. 110, issue 26, pp. 10507-10512</p>
</div>
<div>
<p>Cerling TE, et al. Stable isotope-based diet reconstructions of Turkana Basin hominins. Proc Natl Acad Sci U S A. 2013 Jun 25;110(26):10501-6.</p>
</div>
<div>
<p>Cochran G, and Harpending H. The 10,000 Year Explosion: How Civilization Accelerated Human Evolution. (Basic Books: 2009).</p>
</div>
<div>
<p>Cordain L, et al. 2005. Origins and Evolution of the Western Diet: Health Implications for the 21st Century. The American Journal of Clinical Nutrition 81(2): 341-354.</p>
</div>
<div>
<p>Cordain L. 2011. The Paleo Diet Lose Weight and Get Healthy by Eating the Foods You Were Designed to Eat. Rev. ed. Hoboken, N.J: Wiley.</p>
</div>
<div>
<p>Dahl WJ, et al. Review of the health benefits of peas (Pisum sativum L.). Br J Nutr. 2012;108 Suppl 1:S3-10.</p>
</div>
<div>
<p>David LA, et al. Diet rapidly and reproducibly alters the human gut microbiome. Nature 505, 559-563 (23 January 2014)</p>
</div>
<div>
<p>Eaton SB, and Konner M. 1985. Paleolithic Nutrition. A Consideration of Its Nature and Current Implications. The New England Journal of Medicine 312(5): 283-289.</p>
</div>
<div>
<p>Eaton SB, and Konner MJ. 1997. Paleolithic Nutrition Revisited: a Twelve-year Retrospective on Its Nature and Implications. European Journal of Clinical Nutrition 51(4): 207-216.</p>
</div>
<div>
<p>Eaton SB. 2006. The Ancestral Human Diet: What Was It and Should It Be a Paradigm for Contemporary Nutrition? Proceedings of the Nutrition Society 65(01): 1-6.</p>
</div>
<div>
<p>Eiberg H, et al. Blue eye color in humans may be caused by a perfectly associated founder mutation in a regulatory element located within the HERC2 gene inhibiting OCA2 expression. Human Genetics. March 2008;123(2):177-187</p>
</div>
<div>
<p>Flight I, Clifton P. Cereal grains and legumes in the prevention of coronary heart disease and stroke: a review of the literature. Eur J Clin Nutr. 2006;60(10):1145-1149.</p>
</div>
<div>
<p>Frassetto LA, et al. Metabolic and physiologic improvements from consuming a Paleolithic, hunter-gatherer type diet. Eur J Clin Nutr. 2009;63(8):947-955.</p>
</div>
<div>
<p>Frost GS, et al. Impacts of Plant-Based Foods in Ancestral Hominin Diets on the Metabolism and Function of Gut Microbiota In Vitro. mBio. 2014;5(3). pii: e00853-14.</p>
</div>
<div>
<p>Fujimura KE, et al. Role of the gut microbiota in defining human health. Expert Rev Anti Infect Ther. 2010 Apr;8(4):435-54.</p>
</div>
<div>
<p>He T, et al. Effects of yogurt and bifidobacteria supplementation on the colonic microbiota in lactose-intolerant subjects. J Appl Microbiol. 2008 Feb;104(2):595-604.</p>
</div>
<div>
<p>Henry AG, Brooks AS, and Piperno DR. 2011. Microfossils in Calculus Demonstrate Consumption of Plants and Cooked Foods in Neanderthal Diets (Shanidar III, Iraq; Spy I and II, Belgium). Proceedings of the National Academy of Sciences 108(2).</p>
</div>
<div>
<p>Hollo E. Evolutionary Genetics: Genetics of lactase persistence - fresh lessons in the history of milk drinking. European Journal of Human Genetics (2005) 13, 267-269, 486-491.</p>
</div>
<div>
<p>Human Microbiome Project Consortium. Structure, function and diversity of the healthy human microbiome. Nature 486, 207-214 (14 June 2012).</p>
</div>
<div>
<p>Jang Y, et al. Consumption of whole grain and legume powder reduces insulin demand, lipid peroxidation, and plasma homocysteine concentrations in patients with coronary artery disease: randomized controlled clinical trial. Arterioscler Thromb Vasc Biol. 2001;21(12):2065-2071.</p>
</div>
<div>
<p>Jensen MK, et al. Whole grains, bran, and germ in relation to homocysteine and markers of glycemic control, lipids, and inflammation. Am J Clin Nutr. 2006;83(2):275-283.</p>
</div>
<div>
<p>Jones M. Moving North: Archaeobotanical Evidence for Plant Diet in Middle and Upper Paleolithic Europe. The Evolution of Hominin Diets. Vertebrate Paleobiology and Paleoanthropology. 2009. Pp. 171-180.</p>
</div>
<div>
<p>J&#246;nsson T, et al. Beneficial effects of a Paleolithic diet on cardiovascular risk factors in type 2 diabetes: a randomized cross-over pilot study. Cardiovasc Diabetol. 8, 35 (2009).</p>
</div>
<div>
<p>Jonsson T, et al. A Paleolithic diet is more satiating per calorie than a Mediterranean-like diet in individuals with ischemic heart disease. Nutr Metab (Lond). 2010;7:85.</p>
</div>
<div>
<p>Jukanti AK, et al. Nutritional quality and health benefits of chickpea (Cicer arientum L.): a review. Br J Nutr. 2012;108 Suppl 1:S11-16.</p>
</div>
<div>
<p>Kelly SA, et al. Wholegrain cereals for coronary heart disease. Cochrane Database Syst Rev. 2007;(2):CD005051.</p>
</div>
<div>
<p>Lev E, Kislev ME, and Bar-Yosef O. 2005. Mousterian Vegetal Food in Kebara Cave, Mt. Carmel. Journal of Archaeological Science 32(3): 475- 484.</p>
</div>
<div>
<p>Lindeberg S, and Lundh B. Apparent absence of stroke and ischaemic heart disease in a traditional Melanesian island: a clinical study in Kitava. J Internal Med. 233, 269-275 (1993).</p>
</div>
<div>
<p>Lindeberg S, et al. A Palaeolithic diet improves glucose tolerance more than a Mediterranean-like diet in individuals with ischaemic heart disease. Diabetologia 50, 1795-1807 (2007).</p>
</div>
<div>
<p>Lindeberg S. 2005. Palaeolithic Diet ("stone Age" Diet). Food &amp; Nutrition Research 49(2): 75-77.</p>
</div>
<div>
<p>Lindeberg S. Modern Human Physiology with Respect to Evolutionary Adaptations That Relate to Diet in the Past. The Evolution of Hominin Diets. Vertebrate Paleobiology and Paleoanthropology. 2009. Pp. 43-57.</p>
</div>
<div>
<p>Lindeberg S. Food and Western Disease: Health and nutrition from an evolutionary perspective. (Wiley-Blackwell: 2010).</p>
</div>
<div>
<p>Mercader J. Mozambican grass seed consumption during the Middle Stone Age. Science. 2009 Dec 18;326(5960):1680-183.</p>
</div>
<div>
<p>Mummert A, et al. Stature and robusticity during the agricultural transition: Evidence from the bioarchaeological record. Economics &amp; Human Biology. 2011;9(3): 284-301.</p>
</div>
<div>
<p>O'Keefe Jr JH, and Cordain L. 2004. Cardiovascular Disease Resulting From a Diet and Lifestyle at Odds With Our Paleolithic Genome: How to Become a 21st-Century Hunter-Gatherer. Mayo Clinic Proceedings 79(1): 101-108.</p>
</div>
<div>
<p>Prasad C. 2000. Improving Mental Health through Nutrition: The Future. Nutritional Neuroscience 4(4): 251- 272.</p>
</div>
<div>
<p>Revedin A, et al. Thirty thousand-year-old evidence of plant food processing. Proc Natl Acad Sci USA. 2010 Nov 2;107(44):18815-18819.</p>
</div>
<div>
<p>Roy F, Boye JI, and Simpson BK. 2010. Bioactive Proteins and Peptides in Pulse Crops: Pea, Chickpea and Lentil. Food Research International 43(2): 432-442.</p>
</div>
<div>
<p>Savard M, et al. 2006. The Role of Wild Grasses in Subsistence and Sedentism: New Evidence from the Northern Fertile Crescent. World Archaeology 38(2): 179-196.</p>
</div>
<div>
<p>Scott KP, et al. The influence of diet on the gut microbiota. Pharmacological Research Volume 69, Issue 1, March 2013, Pages 52-60.</p>
</div>
<div>
<p>Sponheimer M, et al. Isotopic evidence of early hominin diets. Proc Natl Acad Sci U S A. June 25, 2013; 110(26): 10513-10518.</p>
</div>
<div>
<p>Thompson RC, et al. Atherosclerosis across 4000 years of human history: the Horus study of four ancient populations. Lancet. 2013 Apr 6;381(9873):1211-22.</p>
</div>
<div>
<p>Ungar PS, et al. 2006. Diet in Early Homo: A Review of the Evidence and a New Model of Adaptive Versatility. Annual Review of Anthropology 35(1): 209-228.</p>
</div>
<div>
<p>Venn BJ, Mann JI. Cereal grains, legumes and diabetes. Eur J Clin Nutr. 2004;58(11):1443-14461.</p>
</div>
<div>
<p>Wynn JG, et al. Diet of Australopithecus afarensis from the Pliocene Hadar Formation, Ethiopia. Proc Natl Acad Sci U S A. Jun 25, 2013; 110(26): 10495-10500.</p>
</div>
<div>
<p>Zamakhchari M, et al. Identification of Rothia bacteria as gluten-degrading natural colonizers of the upper gastro-intestinal tract. PLoS One. 2011;6(9):e24455.</p>
</div>
<div>
<p>Zhong Y, et al. [Effect of probiotics and yogurt on colonic microflora in subjects with lactose intolerance]. Wei Sheng Yan Jiu. 2006 Sep;35(5):587-91.</p>
</div>
<div>
<p>Zoetendal EG, et al. The human small intestinal microbiota is driven by rapid uptake and conversion of simple carbohydrates. The ISME Journal (2012) 6, 1415-1426.</p>
</div> 
</div>

You've probably heard about the Paleo diet; maybe you've even tried it. The "primal eating" trend is everywhere. Paleo, of course, encourages us to eat like our ancient ancestors did. The concept is this: Humans evolved on a diet very different from today's eating habits.

.css-d7z4j9{font-family:'Source Sans Pro',sans-serif;font-size:2rem;line-height:2.5rem;letter-spacing:-0.125%;font-weight:700;}Paleo concept

The Pros And Cons Of The Paleo Diet

What to eat

What to avoid

The problem with Paleo

Paleo concept