The Primal Blueprint is a Wall Street Journal and Amazon best-selling book written by our founder, Mark Sisson. The book became so successful—with over 500,000 copies sold—that it catapulted the ancestral health movement into the mainstream and spawned a nutrition and lifestyle program that has helped tens of thousands of people reach their health and fitness goals. Mark brings a unique background to the health and wellness sphere. As an elite athlete, he finished in the top 5 at the National Marathon Championships, scoring himself a qualifying spot for the 1980 US Olympic Trials. And he didn’t stop there…he then became one of the world’s most renowned triathletes, competing in the Hawaiian Ironman and finishing in an impressive 4th place. Still, despite his world-class conditioning and exceptional fitness, Mark often found himself sick. Once his competitive days were over, he searched for a way to keep his health in check and his body fat low without having to run hundreds of miles a week and strength train at the gym every day. He also cast about for a way to heal some of the chronic "itises" he had developed while overtraining (arthritis, tendinitis, gastritis, sinusitis, etc.). His 20-year quest taught him that what we eat is the key determinant to an energetic mind and lean, agile body…and that Primal eating accomplished all his health and fitness desires—quickly and easily. The more he devoured the research and conducted personal nutrition experiments, the more he became convinced that our modern diet had strayed very significantly from that of our primal ancestors…and our health was faltering as a consequence. He learned that simply by ditching the sugars and carbohydrates found in processed foods, he could make a profound change in his health. You see, the body only burns through the sugar and carbs it needs for its immediate energy requirements. The rest it dumps into fat storage! Stick with a diet high in sugar and carbs and you’re likely to gain at least a few new pounds every year. May not sound too bad in the short term, but a few pounds a year for 10–20 years can lead to excess weight gain of 20…30…40 or more pounds; not to mention a variety of chronic, and often life-threatening, health issues. Mark didn’t have to eliminate the foods he enjoyed most…and neither do you! Beyond cutting out excessive carbs and grains, along with processed foods and hydrogenated oils, there really is no sacrifice or struggle involved. You can eat all the healthy fats, meats, fruits, vegetables and decadent treats like dark chocolate you want! That’s because these healthy foods are essentially made up of protein and fat—macronutrients that the human body has evolved to prefer. Grains like wheat and corn were only introduced in the last 10,000 years or so, and we just don’t take well to the processed sugars and carbohydrates they contain. After all, grains—and packaged processed foods—were never part of our primal ancestors’ diet. So eating Primally became the first layer to the blueprint for building a healthy body. The more Mark studied our primal ancestors, the more he realized that lifestyle behaviors beyond diet also contributed to a healthy—and happy—life. The foods our primal ancestors ate, the amount of sun they got, and the sort of movement they engaged in to survive shaped their genome. While the world has changed in innumerable ways in the last 10,000 years (for better and worse), the human genome has changed very little and thus only thrives under similar conditions. Simply put, if you want a good future, you'd better listen to the past. And that’s where The Primal Blueprint comes in. We teach you not only how to eat in a way that will help your body and genes become efficient at fat burning and muscle building, but also how you can increase your longevity and wellness by reducing disease and illness. Make a commitment to the Blueprint, and watch your body transform into the ideal composition it was meant to be. The Primal Blueprint is no fad weight loss program—it’s a set of lifestyle laws and habits that are the keys to health, wellness and longevity*.