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"Walford, a professor of pathology at UCLA, is at the forefront of the research regarding calorie restriction. calorie restriction (CR) is the theory that by limiting calories to a minimum, the aging process can be slowed. The CR diet is one of the most extensively studied diets in the world. In one study, mice were divided into two groups; half were kept on a normal diet and half on a diet restricted in calories but adequate in everything else (R. Weindruch et al." - Tom Bohager, Everything You Need to Know About Enzymes to Treat Everything from Digestive Problems and Allergies to Migraines and Arthritis (Get the book.)

"When we say "calorie restriction," in the Tree of Life context, which is a plant-source-only, live, organic diet, it should not be misunderstood that we are denying ourselves the fuel we need. Nor are we in a cycle of deprivation. On the Tree of Life Rainbow Green and anti-diabetic Live-Food Cuisine we are eating a delicious, filling, natural, appropriate amount of calories that are nutrient-dense enough to activate an aliesthetic taste change. The aliesthetic change is experienced as when we feel pleasurably satisfied from eating." - Gabriel Cousens, There Is a Cure for Diabetes: The Tree of Life 21-Day+ Program (Get the book.)

"Over the long term, these subjects will find it very difficult to continue consuming an abnormally low level of calories; weight loss due to calorie restriction rarely leads to long-term weight loss. This is why other studies play such a crucial part in explaining the health benefits of a whole foods, plant-based diet, studies that show that the weight-loss effect is due to more than simple calorie restriction. These studies document the fact that vegetarians consume the same amount or even significantly more calories than their meat-eating counterparts, andyet are still slimmer." - T. Colin Campbell, Ph.D. and Thomas M. Campbell II, The China Study: The Most Comprehensive Study of Nutrition Ever Conducted and the Startling Implications for Diet, Weight Loss and Long-term Health (Get the book.)

"Eat less" is the most unwelcome advice of all, but in fact the scientific case for eating a lot less than we presently do is compelling, whether or not you are overweight. calorie restriction has repeatedly been shown to slow aging and prolong lifespan in animals, and some researchers believe it is the single strongest link between a change in the diet and the prevention of cancer. Put simply: Overeating promotes cell division, and promotes it most dramatically in cancer cells; cutting back on calories slows cell division." - Michael Pollan, In Defense of Food: An Eater's Manifesto (Get the book.)

"In these mice, calorie restriction, which is generally associated with reduced oxidative stress and improved glucoregulation (recently reviewed [51]), slows the development of lens opacities [52]. Since the 1980s, a body of evidence has accumulated to indicate lower rates of cataracts among populations of people who eat micronutrient-rich diets or take multivitamins (summarized in Table 1). These findings, discussed later, support the idea that nutritional status over adult life influences the development of cataract with age." - Ann M. Coulston and Carol J. Boushey, Nutrition in the Prevention and Treatment of Disease (Get the book.) "Urinary Ketone Testing Urinary ketone tested on the first morning voided specimen may be useful in detecting insufficient caloric or carbohydrate intake in women treated with calorie restriction [10]. D. Glycosylated Hemoglobin Periodic glycosylated hemoglobin determinations evaluate glycemic control over the previous 4-6 weeks because the attachment of glucose molecules to hemoglobin occurs in relation to the concentration of plasma glucose over the lifespan of the red blood cells. Levels above 7% (varies with individual laboratory) indicate suboptimal blood glucose control [60]. E." - Ann M. Coulston and Carol J. Boushey, Nutrition in the Prevention and Treatment of Disease (Get the book.) "Calorie restriction inhibits the age-related dysregulation of the cytokines TNF-alpha and IL-6 in C3B10RF1 mice. Mech. Ageing Dev. 93, 87-94. 145. Volpato, S., Guralnik, J. M., Ferrucci, L., Balfour, J., Chaves, P., Fried, L. P., and Harris, T. B. (2001). Cardiovascular disease, interleukin-6, and risk of mortality in older women: the women's health and aging study. Circulation 103, 947-953. 146. Kushner, I. (2001). C-reactive protein elevation can be caused by conditions other than inflammation and may reflect biologic aging. Cleve. Clin. J. Med. 68, 535-537. 147. Weindruch, R, Kayo, T." - Ann M. Coulston and Carol J. Boushey, Nutrition in the Prevention and Treatment of Disease (Get the book.) "Dietary calorie restriction in the Emory mouse: effects on lifespan, eye lens cataract prevalence and progression, levels of ascorbate, glutathione, glucose, and glycohemoglobin, tail collagen breaktime, DNA and RNA oxidation, skin integrity, fecundity, and cancer. Mech. Aging Dev. 79, 33-57. 53. van Boekel, M. A., and Hoenders, H. J. (1992). Glycation of crystallins in lenses from aging and diabetic individuals. FEBS Lett. 314, 1-4. 54. Swamy-Mruthinti, S., Shaw, S. M., Zhao, H. R., Green, K., and Abraham, E. C. (1999)." - Ann M. Coulston and Carol J. Boushey, Nutrition in the Prevention and Treatment of Disease (Get the book.)

"Interestingly, studies on calorie restriction in mice, monkeys, and a variety of other species have suggested that a higher intake of daily energy may decrease the life span of neurons in the brain.18 Human studies bear out similar results. A recent research study by Giulio Pasinetti et al.19 found that while high caloric intake based on saturated fat promotes AD-type BAP accumulation, dietary restriction based on reduced carbohydrate intake tends to prevent it." - Peter J. Whitehouse and Daniel George, The Myth of Alzheimer's: What You Aren't Being Told About Today's Most Dreaded Diagnosis (Get the book.)

"This is because a live-food diet is a natural form of calorie restriction. When you cook your food, according to the Max Planck Institute, you coagulate 50 percent of your protein, 70-90 percent of your vitamins and minerals, and up to 100 percent of your phytonutrients. One of the phytonutrients, for example, called resveratrol, plays a very important role in activating the anti-aging genes. It is gaining growing recognition in fighting age-related diseases ranging from dementia to diabetes." - Gabriel Cousens, There Is a Cure for Diabetes: The Tree of Life 21-Day+ Program (Get the book.)

"All diets that work, no matter what claims they make, do so because they involve calorie restriction. However, if you are overweight, you can lose excess weight by eating healthfully for your height, age, and activity level. For moderately active women this is between 1,800 and 2,000 calories a day, and for moderately active men it's between 2,000 and 2,400 calories a day. That is certainly not restrictive, but for overeaters, getting back to a normal eating level does take some getting used to." - J. Douglas Bremner, Before You Take that Pill: Why the Drug Industry May Be Bad for Your Health (Get the book.)

"Stephen Spindler, it is our theory that calorie restriction turns on the anti-aging and theoretically the anti-diabetic genes. In our dietary approach, there is actually no restriction, but the participant is invited to enjoy a delicious, healthy cuisine. This is the powerful secret of the success of this program. In the second week, a four-day course shows people how to let go of their belief that diabetes is incurable. It also shows people how to let go of all the psychological programming and habits that create the diabetes lifestyle." - Gabriel Cousens, There Is a Cure for Diabetes: The Tree of Life 21-Day+ Program (Get the book.)

"This is why you can incorporate this approach instead of the tougher 25 percent reduction that is often used by calorie restriction zealots. Sirt Yourself As you know by now, we don't give you the Dragnet approach of "just the facts." We want you to have a deeper understanding of human biology so you can know how changes in your behaviors influence your body. When it comes to calorie restriction, the mechanism that slows aging comes in the form of a protein called sirtuin. Sirtuin seems to change the chemistry in your body to help neutralize aging." - Mehmet C. Oz., M.D. and Michael F. Roizen, M.D., You: Staying Young: The Owner's Manual for Extending Your Warranty (Get the book.)

"He cites research by Stephen Spindler showing that calorie restriction turns on the antiaging genes and that such a diet can reverse age-related degenerative changes and thus reverse the aging process to some degree. Caloric restriction promotes the self-suicide of cancer-producing cells. Research at Harvard Medical School and BIOMOL Research Laboratories has shown that taking the supplement resveratrol may even turn on the antiaging genes, much like a low-calorie diet." - Susan E. Schenck, The Live Food Factor: The Comprehensive Guide to the Ultimate Diet for Body, Mind, Spirit & Planet (Get the book.) "He believed his disease was exacerbated by exposure to nitrous oxide during a research stay in Biosphere 2 but that his practice of calorie restriction slowed its progression. He certainly exceeded the life expectancy of someone with ALS, but he missed an important piece of the puzzle by continuing to eat cooked food. Another question about his diet arises: in his quest for low calorie intake, did he consume a lot of mercury-laden fish, leading to his ALS? Raw fooders like David Wolfe often combine reduced caloric intake with raw foods for maximal health and longevity." - Susan E. Schenck, The Live Food Factor: The Comprehensive Guide to the Ultimate Diet for Body, Mind, Spirit & Planet (Get the book.)

"What is it? calorie restriction!1 But doesn't that go against the myth of the starvation syndrome from Part I? Not exactly. Ideally, calorie restriction means eating enough calories to meet your daily metabolic needs, but no more. Diets that have proved effective in this regard are restricted in calories but high in nutrients. The rats being tested had their nutritional needs met while eating only enough to meet their most essential metabolic requirements. Getting a Metabolic Tune-up In any event, it doesn't sound like a fun proposition." - Mark Hyman, Ultra-Metabolism: The Simple Plan for Automatic Weight Loss (Get the book.)

"In other words, if these rodent results translate to humans, a diet considered healthful and ample for a healthy person could nevertheless be deadly to a person with cancer, who really needs calorie restriction in addition to a raw produce diet to starve the cancer. "The effect is so large that, in my opinion," states Robinson, "if diet restriction were practiced by all cancer patients in the United States, the resulting life-extension might equal or surpass that resulting from the combined efforts of the entire current medical oncology effort." - Susan E. Schenck, The Live Food Factor: The Comprehensive Guide to the Ultimate Diet for Body, Mind, Spirit & Planet (Get the book.)

"The second approach uses calorie restriction. In many scientific laboratories, the life span of animals has been extended, sometimes nearly doubled, by reducing their daily intake of food drastically. The National Institutes of Health are now putting $30 million into a long-term test with humans to see the result of significant calorie restriction in the daily diet. In my view, however, developing strategies for free radical management offers the most hope—with the least chance for negative side effects—while also providing the chance to enjoy the benefits of these other approaches as well." - Hari Sharma, Freedom from Disease: How to Control Free Radicals, a Major Cause of Aging and Disease (Get the book.)

"Roy Walford's work on calorie restriction showed that restricting caloric intake lowers fasting glucose by 21 percent on average from 92 to 74 in humans. Dr. Walford was the one who found that people who practiced caloric restriction also had a 42 percent reduction in fasting insulin.27 Before the pancreas eventually gets exhausted, overweight and obese people were found to have very high insulin levels.28'29 This research supports the teaching of "the less we eat, the longer we live." - Gabriel Cousens, There Is a Cure for Diabetes: The Tree of Life 21-Day+ Program (Get the book.)

"Increased intake of vitamin D, calcium, and magnesium in the form of low-fat dairy products enhances weight loss along with calorie restriction. It appears that low calcium due to inadequate vitamin D or calcium in the diet triggers the release of the parathyroid hormone, which increases the concentration of activated vitamin D in fat cells and causes them to store energy as more fat. Vitamin D affects your appetite as well. If you eat a high-calcium, high vitamin-D breakfast, you'll feel less hungry and probably eat less in the next twenty-four hours." - James Dowd and Diane Stafford, The Vitamin D Cure (Get the book.)

"In animal models of human neurological medical conditions such as Alzheimer's, Parkinson's, and stroke, calorie restriction protected neurons from degenerating. It also stimulated neurogenesis, or the production of new neurons—which may compensate for cell loss from aging and injury.12 Other research has shown that calorie restriction improved cellular resistance to the damage caused by free radicals and other substances." - Richard P. Brown, M.D., and Patricia L. Gerbarg, M.D., The Rhodiola Revolution: Transform Your Health with the Herbal Breakthrough of the 21st Century (Get the book.)

"By the way, the only dietary strategy shown to actually increase life span in laboratory animals has been calorie restriction. When we humans try calorie restriction on a standard high-carb, low-fat diet, we generally hate it—we're hungry all the time. With a diet higher in protein, higher in fat, and lower in carbohydrates—and high in fiber—we're more satiated and our appetite is much more under control. Insulin—the hunger hormone—is no longer out of control, blood sugar is manageable, and weight becomes stabilized." - Jonny Bowden, M.A., C.N.S., Living the Low Carb Life: Controlled Carbohydrate Eating for Long-Term Weight Loss (Get the book.)

"Researchers have found that calorie restriction helps activate sirtuin (see Figure G.l). That is, eating fewer calories acts as the light switch that turns on sirtuin. Figure W Sirtuin causes histories to change, which allows us to store our PNA more efficiently and changes the way genes are expressed. You can activate sirtuin by drinking red wine." - Mehmet C. Oz., M.D. and Michael F. Roizen, M.D., You: Staying Young: The Owner's Manual for Extending Your Warranty (Get the book.)

"While the discovery that calorie restriction could prolong the lives of laboratory rodents by 30 percent occurred some 30 years ago, it only recently has become the focus of research involving humans. Now longevity studies suggest that people who ate a healthy diet of between 1,700 and 1,900 calories a day tended to resist illness and live longer. Research at the National Institute on Aging has found that calorie restriction triggers a type of cellular stress response, stimulating cells to produce proteins called neurotrophic factors." - Richard P. Brown, M.D., and Patricia L. Gerbarg, M.D., The Rhodiola Revolution: Transform Your Health with the Herbal Breakthrough of the 21st Century (Get the book.)

"Recent studies have shown that a calorie restriction of 40 percent leads to a 45 percent decrease in the rate of mitochondrial free-radical generation and a 30 percent reduction in the level of oxidative damage to mitochondrial DNA. The net effect of these changes decreases the rate of aging by about 50 percent. Unfortunately, humans can't live reasonably by cutting 40 percent of their calorie intake, because all they would think about is food. Fortunately, just cutting back by 15 percent gets you almost as much of an antiaging benefit." - Mehmet C. Oz., M.D. and Michael F. Roizen, M.D., You: Staying Young: The Owner's Manual for Extending Your Warranty (Get the book.)

"Diets generally fail because they start out with too much calorie restriction, inducing the starvation response that is almost certain to be followed by weight gain. Another common reason they fail is that they may allow snacking. Leptin status determines the various modes of metabolic operation in your body. There are five general modes of leptin operation: the balanced-leptin mode, the leptin-resistant mode, the starvation mode, the famine-recovery mode, and the fat-burning mode." - Byron J. Richards, The Leptin Diet: How Fit Is Your Fat? (Get the book.)

"That study suggests that the weight loss occurring on the Atkins diet is not due entirely to calorie restriction. Blood tests suggest that low-carbohydrate diets induce a condition called mild metabolic acidosis, which might increase the risk of osteoporosis and kidney stones. The effect of low-carbohydrate diets on cardiovascular risk is also an unresolved issue. The short-term studies discussed above found that blood cholesterol levels did not worsen with these diets." - Alan R. Gaby, M.D., Jonathan V. Wright, M.D., Forrest Batz, Pharm.D. Rick Chester, RPh., N.D., DipLAc. George Constantine, R.Ph., Ph.D. Linnea D. Thompson, Pharm.D., N.D., The Natural Pharmacy: Complete A-Z Reference to Natural Treatments for Common Health Conditions (Get the book.)

"Roy Walford, calorie restriction has been shown to promote health, reduce disease, and extend life span by 10 to 300 percent. Studies with fish have achieved a remarkable 300 percent extension, while with rats the maximum increase has been 60 percent.22 Although this effect has been proved in many species by U.S. government-backed research groups, it is too soon to complete human trials, but there is little doubt that the same approach will produce results. The unknown factor is, How much calorie restriction, and at what level, is required to produce a result?" - Patrick Holford, The New Optimum Nutrition Bible (Get the book.)

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