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Maimonides & Metabolism : Unique Scientific Breakthroughs in Weight Loss


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Hi! I'm Yonason. After knee surgery at age 43, my waist line spiraled out of control, reaching 44 inches at its worst. Dieting and exercise wasn't helping me manage my weight even with a high level of self-discipline. Despite going to numerous licensed dietitians, the yo-yo effects never panned out to long-term sustainable fat loss. Realizing the need for a gym in my city (Beitar Illit, Israel) I opened one in 2013 (at age 49), obtaining personal trainer certification through Wingate Institute. Wingate sparked my interest in nutrition and physiology, leading me to research endocrinology in relation to diet, exercise, weight loss, and muscle development. Combining this research with the diet recommendations of Maimonides and the Talmud has helped hundreds of my clients locally. To cope with the growing demand for my diet advice and broaden my reach, I put together notes of my research and proven weight loss tools, and invested in several rounds of top-professional editing to create the best concise presentation I could on this topic. My self-published effort lacks the connections and marketing web of an established publisher, but word of mouth quickly sparked booming sales, and I thank you for it. I greatly appreciate your feedback on Amazon, and I will respond to any questions/requests you have in the review section here, or you can email me: herschlag@012.net.il or yonasonherschlag@gmail.com


"A reconsideration of the physiology of weight loss, supported by the writings of the Jewish philosopher Maimonides. In recent years, discussions about losing weight have been dominated by the protein-carbohydrate duo. Although debut author Herschlag hews closely to the conventional wisdom by recommending a diet low in carbs, he expands the terms of the debate significantly. First, he provides an account of how simple caloric restriction can counterproductively increase one's weight. Sustainable weight loss, he says, requires creating a healthy balance among four different hormones: insulin, cortisol, leptin, and ghrelin. Although the effects of insulin on weight management have been widely covered before, the other three hormonal secretions have been comparatively neglected in other books. Here, for example, the author writes that eating too few calories can increase the release of ghrelin, which thereby increases not only hunger but also the production of fat cells. Likewise, he notes, the simultaneous release of insulin and cortisol... also generates new fat cells. The goal of any good diet, according to Herschlag, should be maximizing the process of apoptosis, or the burning of fat cells, while minimizing the production of new fat cells. This leads to some unconventional counsel; for example, since cortisol levels are at their peak directly after we wake, the author recommends postponing breakfast for three hours. Here and there, Herschlag observes points of agreement between his scientific findings and the ancient writings of the Jewish sage Maimonides... Although much of the practical advice ends up treading familiar ground, this is a considerably deeper and more rigorous treatment of the subject than normally offered. Its appraisal of some of the more popular diet fads is also helpful. Readers looking to understand all the factors in weight-loss management will find this a good supplement..." Kirkus "A fresh and interesting perspective." "Some of the benefits of an early dinner that you have articulated seem logical and I expect that they are correct." John E. Hall, PhD, Arthur C. Guyton Professor and Chair, Department of Physiology and Biophysics; Director, Mississippi Center for Obesity Research, University of Mississippi Medical Center "As a dietitian with several decades of experience, I find Maimonides and Metabolism a most valuable, informative, and helpful addition to my professional library. I am already implementing some of its guidelines in my clinical practice. The studies and theory presented concerning insulin resistance and the hormone cortisol in relation to the timing of breakfast and exercise convinced me of the importance of exercising before breakfast. Definitely a most worthwhile read for dietitians and health enthusiasts alike!" Elana M. Kideckel, M.S., R.D., Clinical Dietitian "Awesome, smooth read. Well referenced. Difficult material made easy to understand. Well done!" Shahar Zadok, DC. "THE Health Bible for Today & Now, a magnum opus. I have carried it through many cities in my travels ready to consume or review more." Roxan Hupert, OTR, MSW, Certified yoga instructor, Certified craniosacral therapist, Health consultant and diet coach. "Scientific and informative explanations. Combined with the principles culled from Maimonides and the Talmud, I believe that the mixture of diet and exercise that the author recommends could well help with long term sustainable weight loss." Yisrael Levitt, MD. "Rabbi Yonason Herschlag's Maimonides and Metabolism is an interesting blend of the physiology and biochemistry of weight loss, plus historical perspectives from medical sage Moses Maimonides. In his well-researched book, Rabbi Herschlag reviews the pros and cons of the most popular diet plans and provides a detailed explanation for his optimal dietary and lifestyle recommendations." Amanda Levitt, ND

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