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Matti Narkia

Separate effects of reduced carbohydrate intake and weight loss on atherogenic dyslipid... - 1 views

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    Separate effects of reduced carbohydrate intake and weight loss on atherogenic dyslipidemia -- Krauss et al. 83 (5): 1025 -- American Journal of Clinical Nutrition Changes in peak LDL diameter (Table 2) and mass concentrations of LDL subfractions (Table 3) induced by each of the diets were reflected by changes in the proportions of subjects exhibiting LDL subclass pattern B (Figure 2). There were linear reductions in the prevalence of pattern B as a function of reduced carbohydrate intake after both the stable-weight and weight-loss periods. However, the slopes of these relations differed (P = 0.04) such that the magnitude of the reduction in expression of pattern B induced by weight loss increased in association with the percentage of carbohydrate intake. Conclusions: Moderate carbohydrate restriction and weight loss provide equivalent but nonadditive approaches to improving atherogenic dyslipidemia. Moreover, beneficial lipid changes resulting from a reduced carbohydrate intake were not significant after weight loss. Separate effects of reduced carbohydrate intake and weight loss on atherogenic dyslipidemia. Krauss RM, Blanche PJ, Rawlings RS, Fernstrom HS, Williams PT. Am J Clin Nutr. 2006 May;83(5):1025-31; quiz 1205. Erratum in: Am J Clin Nutr. 2006 Sep;84(3):668. PMID: 16685042
Matti Narkia

A Low-Carbohydrate, Ketogenic Diet versus a Low-Fat Diet To Treat Obesity and Hyperlipi... - 0 views

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    Conclusions: Compared with a low-fat diet, a low-carbohydrate diet program had better participant retention and greater weight loss. During active weight loss, serum triglyceride levels decreased more and high-density lipoprotein cholesterol level increased more with the low-carbohydrate diet than with the low-fat diet. A low-carbohydrate, ketogenic diet versus a low-fat diet to treat obesity and hyperlipidemia: a randomized, controlled trial. Yancy WS Jr, Olsen MK, Guyton JR, Bakst RP, Westman EC. Ann Intern Med. 2004 May 18;140(10):769-77. PMID: 15148063
Matti Narkia

20-year Study Finds No Association Between Low-carb Diets And Risk Of Coronary Heart Di... - 0 views

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    In the first study to look at the long-term effects of low-carbohydrate diets, researchers from the Harvard School of Public Health (HSPH) found no evidence of an association between low-carb diets and an increased risk of CHD in women. Their findings did suggest, however, an association between low-carb diets high in vegetable sources of fat and protein and a low risk of CHD. "This study suggests that neither a low-fat dietary pattern nor a typical low-carbohydrate dietary pattern is ideal with regards to risk of CHD; both have similar risks. However, if a diet moderately lower in carbohydrates is followed, with a focus on vegetable sources of fat and protein, there may be a benefit for heart disease," said Tom Halton, a former doctoral student in the Department of Nutrition at HSPH.
Matti Narkia

NEJM -- Weight Loss with a Low-Carbohydrate, Mediterranean, or Low-Fat Diet - 0 views

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    Weight loss with a low-carbohydrate, Mediterranean, or low-fat diet. Shai I, Schwarzfuchs D, Henkin Y, Shahar DR, Witkow S, Greenberg I, Golan R, Fraser D, Bolotin A, Vardi H, Tangi-Rozental O, Zuk-Ramot R, Sarusi B, Brickner D, Schwartz Z, Sheiner E, Marko R, Katorza E, Thiery J, Fiedler GM, Blüher M, Stumvoll M, Stampfer MJ; Dietary Intervention Randomized Controlled Trial (DIRECT) Group. N Engl J Med. 2008 Jul 17;359(3):229-41. PMID: 18635428 Conclusions Mediterranean and low-carbohydrate diets may be effective alternatives to low-fat diets. The more favorable effects on lipids (with the low-carbohydrate diet) and on glycemic control (with the Mediterranean diet) suggest that personal preferences and metabolic considerations might inform individualized tailoring of dietary interventions. (ClinicalTrials.gov number, NCT00160108 [ClinicalTrials.gov] .)
Matti Narkia

The Effect of a Plant-Based Low-Carbohydrate ("Eco-Atkins") Diet on Body Weight and Blo... - 0 views

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    Conclusion A low-carbohydrate plant-based diet has lipid-lowering advantages over a high-carbohydrate, low-fat weight-loss diet in improving heart disease risk factors not seen with conventional low-fat diets with animal products. The Effect of a Plant-Based Low-Carbohydrate ("Eco-Atkins") Diet on Body Weight and Blood Lipid Concentrations in Hyperlipidemic Subjects David J. A. Jenkins; Julia M. W. Wong; Cyril W. C. Kendall; Amin Esfahani; Vivian W. Y. Ng; Tracy C. K. Leong; Dorothea A. Faulkner; Ed Vidgen; Kathryn A. Greaves; Gregory Paul; William Singer Arch Intern Med. 2009;169(11):1046-1054. DOI: 10.1001/archinternmed.2009.115
Matti Narkia

Carbohydrate restriction may slow prostate tumor growth - eurekalert.org - 0 views

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    DURHAM, N.C. -- Restricting carbohydrates, regardless of weight loss, appears to slow the growth of prostate tumors, according to an animal study being published this week by researchers in the Duke Prostate Center. "Previous work here and elsewhere has shown that a diet light in carbohydrates could slow tumor growth, but the animals in those studies also lost weight, and because we know that weight loss can restrict the amount of energy feeding tumors, we weren't able to tell just how big an impact the pure carbohydrate restriction was having, until now," said Stephen Freedland, M.D., a urologist in the Duke Prostate Center and lead investigator on this study. The researchers believe that insulin and insulin-like growth factor contribute to the growth and proliferation of prostate cancer, and that a diet devoid of carbohydrates lowers serum insulin levels in the bodies of the mice, thereby slowing tumor growth, Freedland said.
Matti Narkia

Low-carbohydrate diets increase LDL: debunking the myth | The Blog of Michael R. Eades... - 0 views

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    This week sees the publication of yet another study showing the superiority of the low-carbohydrate diet as compared to the low-fat diet. This study, published in the prestigious American Journal of Clinical Nutrition, demonstrates that subjects following the low-carb diet experience a decrease in triglyceride levels and an increase in HDL-cholesterol (HDL) levels; and that these changes are accompanied by a minor increase in LDL-cholesterol (LDL), which prompts the authors to issue a caveat. Yes, although just about all the parameters that lipophobes worry about improved with the low-carb diet, the small increase in LDL has caused great concern and has prompted the authors to gravely announce that this small increase is troublesome and should be monitored closely in anyone who may be at risk for heart disease. Since most people who go on low-carb diets do so to deal with obesity issues, and since obesity is a risk factor for heart disease, it would appear that this small increase in LDL often seen in those following a low-carb diet could put these dieters at risk. Does it? We'll see.
Matti Narkia

Ketogenic diets and physical performance - Nutrition & Metabolism | Full text - 0 views

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    Ketogenic diets and physical performance. Phinney SD. Nutr Metab (Lond). 2004 Aug 17;1(1):2. PMID: 15507148 doi:10.1186/1743-7075-1-2 Impaired physical performance is a common but not obligate result of a low carbohydrate diet. Lessons from traditional Inuit culture indicate that time for adaptation, optimized sodium and potassium nutriture, and constraint of protein to 15-25 % of daily energy expenditure allow unimpaired endurance performance despite nutritional ketosis. Both observational and prospectively designed studies support the conclusion that submaximal endurance performance can be sustained despite the virtual exclusion of carbohydrate from the human diet. Clearly this result does not automatically follow the casual implementation of dietary carbohydrate restriction, however, as careful attention to time for keto-adaptation, mineral nutriture, and constraint of the daily protein dose is required. Contradictory results in the scientific literature can be explained by the lack of attention to these lessons learned (and for the most part now forgotten) by the cultures that traditionally lived by hunting. Therapeutic use of ketogenic diets should not require constraint of most forms of physical labor or recreational activity, with the one caveat that anaerobic (ie, weight lifting or sprint) performance is limited by the low muscle glycogen levels induced by a ketogenic diet, and this would strongly discourage its use under most conditions of competitive athletics.
Matti Narkia

NephroPal: Evolutionary Lifestyle - 0 views

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    "Should you eat low carbohydrate and high saturated fat, or high carbohydrate and low fat, that is the question? This question is causing a tremendous back and forth in the medical and nutrition industry. It is unbelievable that the medical profession has not at least thoroughly tested the question. How is it that a magnificent experiment had been going on for 2.5 million years, the hunter gatherer Paleolithic life. This continued up to and until about about 10,000 years ago, with the advent of agriculture. After that time is when the diseases of the metabolic syndrome started to appear. This information is a matter of history. If a layman like me can recognize the validity of an experiment that continued for 2,5 million years, and produced healthy individuals, relative to the diseases of the metabolic syndrome, such as: obesity, diabetes type 2, cardiovascular disease and stroke, and some cancers to name just a few, then how is it, that the consensus opinion of the medical profession and nutritionists think that the hunter gatherer lifestyle of our ancient ancestors is unhealthful or dangerous? The consensus opinion says that low fat (trim all visible fat from the animal protein) and high carbohydrate food is the "healthy eating" choice for us. I personally know that instead of being healthy,it is unhealthy, because by following my doctors advice over the last 50 years many of the above mentioned diseases started to appear on my charts. "
Matti Narkia

Dr Jan Kwasniewski - homodiet.netfirms.com - 0 views

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    "Jan Kwasniewski was born in 1937 in Poland. He graduated from the Military Medical Academy and specialised in Physical Medicine. For many years he worked in the Military Sanatorium in Ciechocinek as dietician where he introduce famous in Poland and at present all over the world his nutritional method which gives the humans good and long health. This method was named "Optimal Diet" which is the cornerstone to the nutritional theory. The principles of the optimal diet at first shock people because the diet recommends eating large quantities of fats along with a radical cut of carbohydrates. The basic premise is that the dieter should keep the proper proportion among the three fundamental nutrients in food: protein, fat and carbohydrates. He found that the ideal proportion is from 1:2.5:0.5 to 1:3.5:0.5 meaning that with every gram of protein 2.5 to 3.5 grams of fat and half a gram of carbohydrates should be eaten. In another words, optimal nutrition is a high fat, low carbohydrate diet. "
Matti Narkia

Eggs distinctly modulate plasma carotenoid and lipoprotein subclasses in adult men foll... - 0 views

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    Eggs distinctly modulate plasma carotenoid and lipoprotein subclasses in adult men following a carbohydrate-restricted diet. Mutungi G, Waters D, Ratliff J, Puglisi M, Clark RM, Volek JS, Fernandez ML. J Nutr Biochem. 2009 Apr 13. [Epub ahead of print] PMID: 19369056 We previously reported that carbohydrate restriction (CR) (10-15% en) during a weight loss intervention lowered plasma triglycerides (TG) by 45% in male subjects (P<.05). However, only those subjects from the EGG group presented higher concentrations of these two carotenoids in plasma, which were correlated with the higher concentra
Matti Narkia

Long-term effects of a very-low-carbohydrate weight loss diet compared with an isocalor... - 0 views

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    Long-term effects of a very-low-carbohydrate weight loss diet compared with an isocaloric low-fat diet after 12 mo. Brinkworth GD, Noakes M, Buckley JD, Keogh JB, Clifton PM. Am J Clin Nutr. 2009 May 13. [Epub ahead of print] PMID: 19439458 doi:10.3945/ajcn.2008.27326
Matti Narkia

Low-Carb and Mediterranean Diets Beat Low-Fat for Weight Loss, Lipid Changes at 2 Years... - 0 views

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    July 16, 2008 - Both a low-carbohydrate diet or a Mediterranean-style diet may be "effective alternatives" to a low-fat diet, with more favorable effects on lipids and/or glycemic control, new research suggests [1]. The two-year study, which managed to keep almost 85% of the 322 study participants on one of the three diets for the entire period, offers the hope that weight-loss diets can be tailored to personal preferences, without sacrificing efficacy, researchers say. "Several recent one-year dietary studies have led the American Diabetes Association to state in January 2008 that low-carb diets should be considered for a maximum of one year," lead author on the study, Dr Iris Shai (Ben Gurion University of the Negev, Beer-Sheva, Israel), told heartwire . "The current two-year study suggests that one low-fat diet doesn't fit all, meaning that the old paradigm should be reconsidered." Shai and colleagues publish the results of the Dietary Intervention Randomized Controlled Trial (DIRECT) in the July 17, 2008 issue of the New England Journal of Medicine
Matti Narkia

Low-carb and Mediterranean diets beat low-fat for weight-loss, lipid changes at two yea... - 0 views

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    July 16, 2008 | Shelley Wood Beer-Sheva, Israel - Both a low-carbohydrate diet or a Mediterranean-style diet may be "effective alternatives" to a low-fat diet, with more favorable effects on lipids and/or glycemic control, new research suggests [1]. The two-year study, which managed to keep almost 85% of the 322 study participants on one of the three diets for the entire period, offers the hope that weight-loss diets can be tailored to personal preferences, without sacrificing efficacy, researchers say. "Several recent one-year dietary studies have led the American Diabetes Association to state in January 2008 that low-carb diets should be considered for a maximum of one year," lead author on the study, Dr Iris Shai (Ben Gurion University of the Negev, Beer-Sheva, Israel), told heartwire. "The current two-year study suggests that one low-fat diet doesn't fit all, meaning that the old paradigm should be reconsidered." Shai and colleagues publish the results of the Dietary Intervention Randomized Controlled Trial (DIRECT) in the July 17, 2008 issue of the New England Journal of Medicine
Matti Narkia

NEJM -- Low-Carbohydrate-Diet Score and the Risk of Coronary Heart Disease in Women - 0 views

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    Low-carbohydrate-diet score and the risk of coronary heart disease in women. Halton TL, Willett WC, Liu S, Manson JE, Albert CM, Rexrode K, Hu FB. N Engl J Med. 2006 Nov 9;355(19):1991-2002. PMID: 17093250 Conclusions Our findings suggest that diets lower in carbohydrate and higher in protein and fat are not associated with increased risk of coronary heart disease in women. When vegetable sources of fat and protein are chosen, these diets may moderately reduce the risk of coronary heart disease.
Matti Narkia

Schizophrenia and Gluten - NephroPal: Schizophrenia - 0 views

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    I have been reading a case report by Kraft, Westman, 2009 of a 70 year old obese, Caucasian female who was suffering from Schizophrenia since the age of 17. Her symptoms included paranoia, hallucinations (auditory and visual), and many hospitalizations for psychosis and suicide attempts. Her daily diet included "egg and cheese sandwich, diet soda, water, pimento cheese, barbecued pork, chicken salad, hamburger helper, macaroni and cheese, and potatoes." Instead, she was asked to follow a low carbohydrate diet of: "unlimited meats and eggs, 4 ounces of hard cheese, 2 cups of salad vegetables, and 1 cup of low carbohydrate vegetables per day. This diet restricts carbohydrate intake to fewer than 20 grams per day." The diet was also grain free.
Matti Narkia

Dietary composition modulates brain mass and amyloid beta levels in a mouse model of ag... - 0 views

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    Dietary composition modulates brain mass and solubilizable Abeta levels in a mouse model of aggressive Alzheimer's amyloid pathology. Pedrini S, Thomas C, Brautigam H, Schmeidler J, Ho L, Fraser P, Westaway D, Hyslop PS, Martins RN, Buxbaum JD, Pasinetti GM, Dickstein DL, Hof PR, Ehrlich ME, Gandy S. Mol Neurodegener. 2009 Oct 21;4:40. PMID: 19845940 doi:10.1186/1750-1326-4-40 INTERPRETATION: Dissociation of Abeta changes from brain mass changes raises the possibility that diet plays a role not only in modulating amyloidosis but also in modulating neuronal vulnerability. However, in the absence of a study of the effects of a high protein/low carbohydrate diet on nontransgenic mice, one cannot be certain how much, if any, of the loss of brain mass exhibited by high protein/low carbohydrate diet-fed TgCRND8 mice was due to an interaction between cerebral amyloidosis and diet. Given the recent evidence that certain factors favor the maintenance of cognitive function in the face of substantial structural neuropathology, we propose that there might also exist factors that sensitize brain neurons to some forms of neurotoxicity, including, perhaps, amyloid neurotoxicity. Identification of these factors could help reconcile the poor clinicopathological correlation between cognitive status and structural neuropathology, including amyloid pathology.
Matti Narkia

Long-term consumption of a carbohydrate-restricted diet does not induce deleterious met... - 0 views

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    Long-term consumption of a carbohydrate-restricted diet does not induce deleterious metabolic effects. Grieb P, K?apcin'ska B, Smol E, Pilis T, Pilis W, Sadowska-Krepa E, Sobczak A, Bartoszewicz Z, Nauman J, Stan'czak K, Langfort J. Nutr Res. 2008 Dec;28(12):825-33. PMID: 19083495 doi:10.1016/j.nutres.2008.09.011 These results indicate that long-term (>1 year) compliance with a low-CHO high-fat "optimal diet" does not induce deleterious metabolic effects and does not increase the risk for cardiovascular disease, as evidenced by maintenance of adequate glycemic control and relatively low values for conventional cardiovascular risk factors.
Matti Narkia

An Isoenergetic Very Low Carbohydrate Diet Improves Serum HDL Cholesterol and Triacylgl... - 0 views

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    An isoenergetic very low carbohydrate diet improves serum HDL cholesterol and triacylglycerol concentrations, the total cholesterol to HDL cholesterol ratio and postprandial pipemic responses compared with a low fat diet in normal weight, normolipidemic women. Volek JS, Sharman MJ, Gómez AL, Scheett TP, Kraemer WJ. J Nutr. 2003 Sep;133(9):2756-61. PMID: 12949361
Matti Narkia

NephroPal: Summer vs Winter mode - 0 views

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    "My goal is to gather the basic science and apply it to nutrition - NUTRIGENOMICS. What do I mean? How does what we eat signal our genes in the nucleus. By our food choices, we are sending different signals to our genes. High carbohydrate and high fructose intake signals it is summer time and winter is coming -- grow and store the energy (insulin). High fat, low carbohydrate diet with calorie restriction signals our genes that winter is here -- use the stored energy, repair the genes, and slow down growth (i.e. Sirt1/Foxo pathway). The Sirt1/FoxO1 pathway is important as it aids in repairing DNA. Damaged DNA can lead to uncontrolled cellular replication (i.e. cancers). The immune system (phagocytes) has a mechanism to remove old and unwanted cells called apoptosis (cellular death). "
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