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Eat Fat To Lose Fat -- Washington U.
Eat Fat to Lose Fat The research may be one reason why the Atkins diet -- which is low in carbohydrates and high in fat -- seems to work. By Kristen Philipkoski Story location: http://www.wired.com/news/medtech/0,1286,67473,00.html 02:00 AM May. 10, 2005 PT Diets too low in fat may be responsible for stubborn bulges on bellies, thighs and butts, according to a new study. Dieters trying slim down by following extremely low-fat diets may be causing the exact opposite results, according to new research from the Washington University in St. Louis. Eating at least small amounts of dietary fats, such as fish oils, might be a better way to kick-start fat-burning, say researchers. Scientists found that in mice, old fat stuck around when the liver had no new fat to process. The results are further evidence that extreme diets often aren't the ticket to a lean body, and a balanced diet is likely important for more reasons than scientists currently understand. "Extremes of diet are sometimes unwise, because a balanced diet may be critical for providing certain dietary signals that allow you to respond appropriately to stresses, and one of those stresses is eating too much," said Dr. Clay Semenkovich, a professor of medicine, cell biology and physiology at the University of Washington and co-author of the study. The research may be one reason why the Atkins diet -- which is low in carbohydrates and high in fat -- seems to work. But Semenkovich said a balanced diet is probably more effective in the long run, because it's easier to maintain for long periods of time. And, like all extreme dieters, Atkins followers could be suppressing other dietary signals important for staying healthy. The researchers genetically engineered the mice such that they lacked a fat-producing enzyme in the liver. On a zero-fat diet, the mice developed fatty liver disease. Their old fat stores moved to the liver, but their livers could not burn the fat. Therefore, the researchers say in the May issue of the journal Cell Metabolism, the liver needs new fat to regulate fat burning. "On a normal diet they were OK," Semenkovich said. "We went to a very extreme low-fat diet, and these animals paradoxically accumulated an extremely large amount of fat in their livers." The liver is nutrition's traffic cop, directing nutrients to be stored or used by the body. Incorrect processing of glucose or lipids by the liver can cause type 2 diabetes and atherosclerosis. People who are obese or insulin-resistant often develop fatty liver disease. The scientists also tried a second approach to kick-start the fat-burning process in the genetically engineered mice. They gave the mice a drug -- a stronger version of human triglyceride-lowering medications that go by the trade names Lopid and Tricor. The drug the researchers used, as well as those available on the market now, activate a protein called PPAR-alpha, which extracts energy from carbohydrates and fats. Researchers already knew that fat activates the protein, but the study proved that PPAR-alpha specifically needs new fats to do its job. Semenkovich and his colleagues were surprised by their results. "We thought we would alter the levels of fats that circulate in blood," he said. "Instead we found you need to generate new fat to make a signal to burn fat in the liver." |
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"jbuch" wrote
Eat Fat to Lose Fat The research may be one reason why the Atkins diet -- which is low in carbohydrates and high in fat -- seems to work. Story location: http://www.wired.com/news/medtech/0,1286,67473,00.html Somehow I get the feeling that this is an extremely important finding. Thanks for posting it. -- Bob Kanyak's Doghouse http://www.kanyak.com |
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Opinicus wrote:
"jbuch" wrote Eat Fat to Lose Fat The research may be one reason why the Atkins diet -- which is low in carbohydrates and high in fat -- seems to work. Story location: http://www.wired.com/news/medtech/0,1286,67473,00.html Somehow I get the feeling that this is an extremely important finding. Thanks for posting it. Yes, It seemed to reinforce Atkin's claim that there is no "Low Fat" version of the diet. It also confirms the common advice by many vererans here to "Eat More Fat". |
#4
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"It also confirms the common advice by many vererans here to "Eat More
Fat". Well, that's advice that this veteran doesn't agree with. Any reasonable approach to Atkins or LC has enough fat in it without having to look for more. |
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#6
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This is a blow to the South Beach Diet a it
pushes for all types of no fat substitutes such as butter substitute, egg substitute, ...etc. I read the Dr's book. It's all low fat this no fat that. In the end, losing or gaining weight boils down to total calories intake vs physical activities. You do need fat to survive and to burn prehistoric fat The low carb advantage is in the lack of options to munch on and the loss of appetite while in Ketosis. Add to that the Ketosis state of burning fat for energy instead of burning the 2 bags of popcorn you swallow on low fat diets. "jbuch" wrote in message ... Eat Fat to Lose Fat The research may be one reason why the Atkins diet -- which is low in carbohydrates and high in fat -- seems to work. By Kristen Philipkoski Story location: http://www.wired.com/news/medtech/0,1286,67473,00.html 02:00 AM May. 10, 2005 PT Diets too low in fat may be responsible for stubborn bulges on bellies, thighs and butts, according to a new study. Dieters trying slim down by following extremely low-fat diets may be causing the exact opposite results, according to new research from the Washington University in St. Louis. Eating at least small amounts of dietary fats, such as fish oils, might be a better way to kick-start fat-burning, say researchers. Scientists found that in mice, old fat stuck around when the liver had no new fat to process. The results are further evidence that extreme diets often aren't the ticket to a lean body, and a balanced diet is likely important for more reasons than scientists currently understand. "Extremes of diet are sometimes unwise, because a balanced diet may be critical for providing certain dietary signals that allow you to respond appropriately to stresses, and one of those stresses is eating too much," said Dr. Clay Semenkovich, a professor of medicine, cell biology and physiology at the University of Washington and co-author of the study. The research may be one reason why the Atkins diet -- which is low in carbohydrates and high in fat -- seems to work. But Semenkovich said a balanced diet is probably more effective in the long run, because it's easier to maintain for long periods of time. And, like all extreme dieters, Atkins followers could be suppressing other dietary signals important for staying healthy. The researchers genetically engineered the mice such that they lacked a fat-producing enzyme in the liver. On a zero-fat diet, the mice developed fatty liver disease. Their old fat stores moved to the liver, but their livers could not burn the fat. Therefore, the researchers say in the May issue of the journal Cell Metabolism, the liver needs new fat to regulate fat burning. "On a normal diet they were OK," Semenkovich said. "We went to a very extreme low-fat diet, and these animals paradoxically accumulated an extremely large amount of fat in their livers." The liver is nutrition's traffic cop, directing nutrients to be stored or used by the body. Incorrect processing of glucose or lipids by the liver can cause type 2 diabetes and atherosclerosis. People who are obese or insulin-resistant often develop fatty liver disease. The scientists also tried a second approach to kick-start the fat-burning process in the genetically engineered mice. They gave the mice a drug -- a stronger version of human triglyceride-lowering medications that go by the trade names Lopid and Tricor. The drug the researchers used, as well as those available on the market now, activate a protein called PPAR-alpha, which extracts energy from carbohydrates and fats. Researchers already knew that fat activates the protein, but the study proved that PPAR-alpha specifically needs new fats to do its job. Semenkovich and his colleagues were surprised by their results. "We thought we would alter the levels of fats that circulate in blood," he said. "Instead we found you need to generate new fat to make a signal to burn fat in the liver." |
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"I read the Dr's book. It's all low fat this no fat that."
I don't think that's a fair characterization of South Beach. There is a lot in common between SB and Atkins. As time went on, Atkins, like much of the medical community, came to realize that some fats are better than others. He then began to advocate more the use of the beneficial fats, like olive oil, nuts, etc. SB also does this. What SB tries to limit is saturated fat, while Atkins doesn't. And the jury is still out on who's right on this one. The only real evidence Atkins has that saturated fat doesn't matter is some short term tests that show lipid levels either improve or are no worse while on Atkins. His main claim was that all the data accumulated that leads the mainstream to believe saturated fat is bad was collected from people on traditional diets, high in carbs and fat. That is a valid point, but it doesn't prove that it changes the conclusion. In the sample diets in SB, I remember seeing things like eggs and canadian bacon for breakfast. And it was also said that if you wanted some bacon, that was ok too, but don't over do it. I would characterize SB as a reduced carb, reduced sat, 0 trans fat diet, while Atkins is a low carb, 0 trans fat diet. |
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