Two New Studies Validate the
Atkins' Low-Carbohydrate, High-Protein, 
and High-Saturated Fat Diet

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Atkins Diet Shows Surprising Results, Researcher Says; One-year Study Shows Diet May Be As Effective And Safe As Conventional Diets

Source: University of Pennsylvania Medical Center, Date: 2003-05-22

Science Daily News Release

Philadelphia., PA -- A 3-center study led by researchers at the Weight and Eating Disorders Program of the University of Pennsylvania School of Medicine reports the results of the first controlled trial of the Atkins Diet. The Atkins Diet limits carbohydrates but permits unrestricted amounts of protein and fat. Compared to a conventional, high- carbohydrate, low-calorie approach, Atkins dieters lost twice as much weight at 3 and 6 months but there was no difference between the groups at 1 year. Despite the lack of differences in weight loss at 1 year, the Atkins dieters had significantly greater increases in good cholesterol (HDL) and greater decreases in triglycerides.

The study, to be published in the May 22 issue of the New England Journal of Medicine, was led by Gary Foster, Ph.D. Associate Professor of Psychiatry and Clinical Director of the Weight and Eating Disorders Program at the University of Pennsylvania. Samuel Klein, MD of Washington University in St. Louis and James Hill, Ph.D. and Holly Wyatt, M.D. of the University of Colorado were the lead investigators at the other centers. The study investigated 63 obese men and women who were 44 years of age and weighed and average of 216 pounds.

All participants met with a registered dietitian at 0, 3, 6 and 12 months. Those in the Atkins group were given a copy of Dr. Atkins New Diet Revolution and asked to follow the diet as described. The conventional diet group was given instructional materials on a 1200-1500 calories/day (women) or 1500-1800 calories /day (men) diet that consisted of 60% carbohydrate 25% fat, and 15% protein based on the USDA Food Guide Pyramid. Atkins participants lost an average of 14.7 pounds compared with 5.8 pounds in the conventional group at 3 months, 15.2 pounds versus 6.9 pounds at 6 months, and 9.5 versus 5.4 pounds at 12 months. At 1 year, Atkins participants had greater increases in HDL cholesterol (18% vs. 3%) and greater reductions in triglycerides (-28% vs. 1%) than did those following a conventional diet. Neither group showed changes in LDL (bad) cholesterol at 1 year .

"Obesity is a national public health problem, and we need to evaluate alternative weight loss approaches aggressively. Widely recommend low carbohydrate approaches may be premature, but our initial findings suggest that such diets may not have the adverse effects that were anticipated” Foster stated. "The real issue is whether low carbohydrate approaches help patients maintain their weight loss better than conventional approaches. It will also be important to determine whether the effects of the diet on cholesterol are the same during weight maintenance as they are they are during weight loss.” Foster also cautioned.

Results of this first, randomized, controlled study of the Atkins diet suggest that low- carbohydrate diets may not be as harmful as anticipated. "Larger and longer studies are needed to assess the long-term safety and efficacy of low carbohydrate approaches in the management of obesity. These preliminary data suggest that weight losses will be comparable to conventional approaches over a 1 year period, but there may be some favorable effects of a low-carbohydrate approach in terms of triglycerides and HDL (good) cholesterol,” Foster said.

This study was funded through grants from the National Institutes of Health (NIH) General Clinical Research Centers at the University of Pennsylvania, Washington University and the University of Colorado. Others who participated in the study at Penn were Brian McGuckin Ed.M, Research Coordinator; Philippe Szapary, MD, Assistant Professor of Medicine, and Daniel Rader, MD, Associate Professor of Medicine.

Similar findings for a low-carbohydrate diet by another group of Penn faculty working at Philadelphia VA Medical Center were also reported in the May 22 issue of the New England Journal of Medicine. In their 6-month study, Frederick Samaha, MD, and colleagues found that a low carbohydrate diet was associated with greater weight losses, reductions in triglycerides and improvements in insulin sensitivity compared to low-calorie, high-carbohydrate diet in 132 patients who were 53 years old and weighed 288 pounds.

Foster and his colleagues at the Washington University and the University of Colorado are currently enrolling participants for a large, NIH-funded, 5-year study of low- and high-carbohydrate diets.

“This larger study of 360 participants will help us more fully assess the benefits and risks of low-carbohydrate diets on bone mass, kidney function, arterial function and exercise tolerance,” Foster said.


This story has been adapted from a news release issued by University Of Pennsylvania Medical Center.

High Saturated Fat, Starch Avoidance Weight Loss Diet Offers Good Preliminary Results

Source: Mayo Clinic, Date: 2003-11-12

Science Daily News Release

ROCHESTER, Minn. -- In the quest for an effective weight loss diet that also is nutritionally complete, researchers in the November issue of Mayo Clinic Proceedings report preliminary weight loss results of a regimen that is similar to the Atkins diet that are encouraging, but merit further, broader study.

Researchers from Cardiology Research at Christiana Care Health Services, Inc., in Newark, Del., report patients on a high saturated fat and avoidance of starch diet similar to the Atkins diet experienced 5 percent weight loss after six weeks without adverse effects. The Atkins diet is noted for its high-fat and carbohydrate restrictions, which have been shown to result in weight loss.

James Hays, M.D., of the Christiana Care Health Services, Inc. the primary investigator, said the study came about after researchers noted that patients with atherosclerosis or diabetes were also experiencing weight loss with a diet they were prescribing for treatment of the chronic disease.

"For the last eight years, we have been concentrating on dietary treatment of the chronic diseases diabetes and atherosclerosis and have ended up prescribing to patients a diet high in saturated fat much like what Dr. Atkins has advocated for weight loss," Dr. Hays says. "A consistent calorie intake is helpful in treatment of diabetes, so we have prescribed a consistent intake of certain fruits and vegetables rather than Dr. Atkins' step-wise approach and this may have resulted in some other differences."

Although further studies remain to be done, it might be possible to find an optimum diet that results in weight loss, promotes longevity and contains a lot of saturated fat, Dr. Hays said. The Atkins diet relies on ketosis, the decrease in appetite related to the caloric intake. However no long-term studies have determined whether there is a risk of cardiovascular disease.

Others who contributed to the study include Angela DiSabatino; Robert Gorman, Ph.D.; Simi Vincent, Ph.D., M.D.; and Michael Stillabower, M.D., all of Christiana Care Health Services.

The observational study looked at 17 men and six women who self-reported food intake and each lost 5 percent of their body weight in six weeks, Dr. Hays said. The diet prescribed for patients by the physicians was to consume one half of all calories as saturated fat, primarily as red meat and cheese. Eggs and other low-fat forms of protein were allowed, regardless of cholesterol content. Fresh fruit and non-starchy vegetables were prescribed in restricted amounts at each meal. Starch was forbidden.

In an editorial in the same issue of Mayo Clinic Proceedings, Gerald Gau, M.D., of Mayo Clinic's Division of Cardiovascular Diseases and Internal Medicine, writes that researchers should keep an open mind about the Atkins diet and continue to study its metabolic effects.

With this published study, Dr. Gau notes that long-term follow-up and larger numbers of patients are needed for more definitive information. Dr. Gau writes that other diets that restrict calories should also be studied for their risks and benefits.

 

Mayo Clinic Proceedings is a peer-reviewed and indexed general internal medicine journal, published for more than 75 years by Mayo Clinic, with a circulation of 130,000 nationally and internationally.


This story has been adapted from a news release issued by Mayo Clinic. 

North American Association for the Study of Obesity
Conference Report

Physicians are often asked about the safety and efficacy of low-carbohydrate, high-protein diets. Unfortunately, very few controlled studies have evaluated these popular regimens. These diets, which are often high in fat, raise concerns about their effects on lipid levels. One such diet, the Atkins Diet, restricts carbohydrates and encourages unlimited consumption of protein and fat. Preliminary results were presented from a 3-center (University of Pennsylvania, University of Colorado, Washington University) randomized controlled trial comparing the Atkins Diet with a conventional low-fat, high-carbohydrate plan that restricted daily caloric intake to 1200-1500 kcal for women and 1500-1800 kcal for men.[10] The study included 63 obese (BMI 33.8 ± 3.4 kg/m2) males and females who were randomized to 1 of the 2 diets. Subjects received an initial session with a dietitian to explain the assigned diet program. At 12 weeks, the researchers found that the Atkins group had a lower rate of attrition (12%) compared with that of the conventional program (30%). In addition, subjects in the Atkins group lost significantly more weight (8.5 ± 3.7%) compared with the conventional group (3.7 ± 4.0%). In terms of serum lipids, the Atkins group demonstrated slight increases in total cholesterol (TC; 2.2 ± 16.6%) and low-density lipoprotein (LDL) cholesterol (6.6 ± 20.7%), whereas the conventional group showed significant decreases in these measures (TC -8.2 ± 11.5%; LDL -11.1 ± 19.4%). High-density lipoprotein (HDL) cholesterol significantly increased in the Atkins group (11.5 ± 20.6%) but did not change in the conventional group, whereas triglycerides showed a significant decrease for the Atkins group (-21.7 ± 27.9%) and no change in the conventional group. At 26 weeks, these changes persisted in both groups even though the sample size was smaller. The researchers concluded that the Atkins Diet produced favorable effects on weight, HDL, triglycerides, and retention compared with a conventional low-fat, low-calorie program, whereas the conventional plan was associated with more favorable effects on TC and LDL cholesterol.

A similar randomized-controlled trial from Duke University was also presented at the conference.[11] The researchers in this study also compared the effects of a low-carbohydrate (LC) diet with a low-fat, low-calorie (LF) program. This study included 120 obese (mean BMI 34 kg/m2) males and females, who all received group treatment for their respective diet programs. At 6 months, both groups had similar rates of attrition, but the LC group lost considerably more weight (13.3 ± 4.6%) compared with the LF group (8.6 ± 5.9%). In addition, the LC group lost significantly more fat mass than the LF group (-9.7 kg for the LC group and -6.4 kg for the LF group). Both groups showed decreases in triglycerides, with the LF group also showing a significant decrease in total cholesterol (-13.5 mg/dL). The LC group showed significant increases in HDL and a significant decrease in Chol/HDL ratio. This pattern of results was similar to those of the 3-center study described above. Longer-term studies are needed to more fully evaluate the safety and efficacy of these popular diet approaches.

The 2002 NAASO meeting will occur in San Diego, California, from February 23 as part of the First Annual Nutrition Week Conference.

Reference Books and Online Support Groups:

Active Low-Carber Forums - Atkins & Low Carbohydrate Diet Support Group

You can talk with others on this message board who have experience living a low-carbohydrate way of life. Registration is free but is required before you can post your own message or question. You can click above to visit and read messages posted by others. Look for the special health topics or search for previously posted messages on the subject of your concern. It's a fun place to talk with like-minded people and learn the truth about nutrition and health.

Life Without Bread: How a Low-Carbohydrate Diet Can Save Your Life

Life Without Bread is an important addition to the growing body of literature on the benefits and importance of low-carb diet. Written by Christian Allan, Ph.D., and Wolfgang Lutz, M.D., the book is based on Dr. Lutz's experience using carbohydrate restricted diets with thousands of patients for more than 40 years. It is based on extensive research in the medical and scientific literature and provides ample references. The book presents a unified theory of how high (and even moderate) levels of dietary carbohydrate cause or exacerbate various health problems and how carbohydrate restriction can help people to recover from those problems.

The book Life Without Bread by Christian Allan, Ph.D. and Wolfgang Lutz, M.D. has a chapter on gastrointestinal diseases. Don't be mislead by the title to believe the cure is the simple elimination of bread. Mr. Lutz's older book is out of print but has essentially the same information. It may even contain more detail than his new book above. Fortunately, Chapter VII: Gastro-Intestinal Tract of the older book can be read online.

Dr. Atkins' New Diet Revolution - Revised and Improved

The Atkins' New Diet Revolution is the best book for an initial dietary change and quick weight loss, reduced blood pressure and reduced cholesterol. Look for the companion book for recipes. It has some very interesting case studies from the doctor's patients. It includes data from past civilizations proving the low-carbohydrate diet is the most healthy.
Robert C. Atkins, M.D.

Dr. Atkins' Age-Defying Diet Revolution

This is Dr. Atkins newest book. The main topics are the cause, prevention and cure for diabetes and heart disease which have become major health concerns in the United States and many other developed countries.
Robert C. Atkins, M.D. with Sheila Buff.

Protein Power Lifeplan

This book by Dr. Michael and Dr. Mary Dan Eades has an excellent chapter on "Leaky Gut Syndrome" which describes the cause of bowel diseases and autoimmune diseases.

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MEDICAL DISCLAIMER: All information is intended for your general knowledge only and is not a substitute for medical advice or treatment for specific medical conditions. You should seek prompt medical care for any specific health issues and consult your physician before starting a new fitness or nutrition regimen. The information contained in this online site and email is presented in summary form only and intended to provide broad consumer understanding and knowledge of dietary supplements. The information should not be considered complete and should not be used in place of a visit, call, consultation, or advice of your physician or other health care provider. We do not recommend the self-management of health problems. Information obtained by using our services is not exhaustive and does not cover all diseases, ailments, physical conditions, or their treatment. Should you have any health care related questions, please call or see your physician or other health care provider promptly. You should never disregard medical advice or delay in seeking it because of something you have read here. We strongly suggest you select a physician who is knowledgeable and supportive of the low-carbohydrate diet. Many of the physicians listed on this page have health clinics.

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The following sites have excellent information on a good diet for healing and health preservation.


The World's Most Popular Diet & Nutrition Message Board

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Bible Life Healing Ministries
Our Nutritional Program Has Performed Healing Miracles
The proper diet for healing and health preservation is argued fiercely because this is a spiritual battle. Poor health and disease can be caused by believing the worldly myths, distortions, and lies about nutrition which have deceived most people. The following information should be studied carefully to reduce your risk of obesity, diabetes, heart disease, cancer, and inflammatory bowel diseases. This information is healing people worldwide. You can also be healed. Please let us know about your success.

Jerry S. from Augusta, Georgia writes, "Thank you for such a wonderful web site.... the nutrition pages opened my eyes to the truth - and saved my life!"

Nutrition, Healing, Health, Protein, Fat, Carbohydrate, and Cholesterol Science.

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Absolute Scientific Proof Carbohydrates Are Pathogenic.

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Ketogenic, Low-Carbohydrate Diet for Bodybuilders.

Ketosis Myths and Facts on the Low-Carbohydrate Diet.

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Myths, Distortions, and Lies About Beef.

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Studies Prove Beef Is A Safe And Healthy Food.

Bone Analysis Suggests Neolithic People Preferred Meat.

Proof Saturated Fats Are Healthy.

7,700-Year-Old Bones Prove Early Humans were Highly Carnivorous.

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Feeding the Irrational Fear of Cholesterol.

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The Organic Farming Myths. Anthropological Research Reveals Optimal Human Diet by H. Leon Abrams, Jr.
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by H. Leon Abrams, Jr.
The Myths of Vegetarianism. The Case Against Milk by Sheila Buff.
Vegetarian Diet Deficiencies Are a Proven Fact. Vitamin Deficiencies and Vitamin Toxicities.

Atkins' Diet Healthier Than the American Heart Association's Diet.

Dr. Weston A. Price Foundation.

Genetically Modified Corn Study Reveals Health Damage and Cover-up. The Mediterranean Diet is a Big FAT Lie.
Pregnant? Pregnancy, Adoption, Abortion, Infertility,
and  Proper Diet During Pregnancy for a Healthy Baby

Mommy Goes Shopping for Baby Food.
Read Why Mommy's Diet Causes Infant Autism.

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My personal vitamin, mineral, and supplement program by Kent R. Rieske
Top Ten Myths About Nutrition and Diet in the Bible
The Truth, Myths, and Lies About the Health and Diet of the "Long-Lived" People of Hunza, Pakistan, Hunza Bread, and Pie Recipes
The Truth About the Balanced Diet Theory and the 
Four or Five Groups of the Food Guide Pyramid
Study With Mice Shows the High-Fat, Low-Carbohydrate Diet Improves Alzheimer's Disease and Most Likely Will Prevent Alzheimer's Disease


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