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    Study first to show that low-carb diets can improve blood flow in as little as four weeks

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    yoly
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    Study first to show that low-carb diets can improve blood flow in as little as four weeks

    Post by yoly on Wed Jul 18 2018, 13:58

    Study first to show that low-carb diets can improve blood flow in as little as four weeks

    https://medicine.missouri.edu/news/while-men-lose-more-weight-low-carb-diets-women-show-greater-improvements-artery-flexibility

    July 17, 2018

    According to the Centers for Disease Control and Prevention, an estimated 1 out of 3 American adults live with higher than normal blood sugar levels known as prediabetes. Researchers from the University of Missouri School of Medicine recently found that while men may lose more weight on low-carb diets, women actually see better improvements in artery flexibility. It’s a finding that may help pre-diabetic women reduce their risk for heart disease through a low-carb diet.
    Elizabeth Parks, PhDElizabeth Parks, PhD

    “Previous research has shown that as women age, their blood vessels stiffen more so than men, putting them at an increased risk of heart disease,” said Elizabeth Parks, PhD, professor of nutrition and exercise physiology at MU. “Contrary to what you may think, you actually don’t want stiff blood vessels. Rather, you want flexible vessels that expand slowly as the blood flows through them. Our study found that low-carb diets helped reduce the stiffness of arteries in women, which can, in turn, reduce their risk of developing serious heart conditions.”

    To illustrate this, Parks compares good vessels to be like a rubber hose and aging causing vessels to become stiff, similar to a plastic pipe. When you pour water through a rubber hose, the hose bends and flexes as the water makes its way through. When you pour water through a solid pipe, the water travels through the pipe quickly. In the human body, for good health, we want flexible, pliable, resilient arteries.

    As part of the study, 20 middle-aged, pre-diabetic men and women were given carb-restricted meals provided by the MU Nutrition Center for Health for two weeks and were supplied meal planning instructions for an additional two weeks. Over the four-week period, the men in the study lost 6.3 percent of their body weight, while women lost 4.4 percent. However, using an arterial stiffness measurement called pulse wave velocity, the women showed reduced blood flow speeds of 1 meter per second, while men showed no changes in blood flow speed.

    “Vascular stiffness is a natural process of aging that can be accelerated by obesity, insulin resistance and metabolic syndrome,” said Parks, who also serves as associate director of the MU Clinical Research Center. “Our study is the first to demonstrate that weight loss can reduce arterial stiffness in as little as four weeks and that dietary carbohydrate restriction may be an effective treatment for reducing aortic stiffness in women.”

    The study, “Effect of carbohydrate restriction-induced weight loss on aortic pulse wave velocity in overweight men and women,” recently was published online by Applied Physiology, Nutrition and Metabolism. In addition to Parks, study authors also include Majid Syed-Abdul, Qiong Hu, Miriam Jacome-Sosa, Jaume Padilla and Camila Manrique-Acevedo with the MU School of Medicine. Colette Heimowitz, an expert in low-carb diets from the company, Atkins Nutritionals, was also an author. The study was funded by the University of Missouri and Atkins Nutritional, who also provided some of the foods subjects ate. Parks is a member of the Scientific Advisory Board of Atkins Nutritionals Inc, led by Heimowitz. The other study authors declare that they have no conflicts of interest. The content is solely the responsibility of the authors and does not necessarily represent the official views of the funding agencies.
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    chris c
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    Re: Study first to show that low-carb diets can improve blood flow in as little as four weeks

    Post by chris c on Wed Jul 18 2018, 23:10

    Elizabeth Parks worked for/with Ron Krauss and has done a review paper on the effect of carbohydrates on triglycerides

    https://academic.oup.com/jn/article/131/10/2772S/4686463

    More of her work

    https://www.ncbi.nlm.nih.gov/pubmed/?term=parks+e+j

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    Jan1
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    Re: Study first to show that low-carb diets can improve blood flow in as little as four weeks

    Post by Jan1 on Fri Jul 20 2018, 10:42

    Many thanks for this Yoly …

    Thanks to Chris too, for the additional links …

    There's always plenty of reading to do here  Smile

    All the best Jan

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    chris c
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    Re: Study first to show that low-carb diets can improve blood flow in as little as four weeks

    Post by chris c on Sat Jul 21 2018, 23:47

    This is the Parks paper I was trying to find

    Carbohydrate-induced hypertriacylglycerolemia: historical
    perspective and review of biological mechanisms

    https://academic.oup.com/ajcn/article/71/2/412/4729093

    I have a lot of time for researchers like her, Marc Hellerstein, Darlene Dreon and of course Krauss himself, and the late Gerald Reaven. They work quietly in the background. The upside is that they don't attract the opprobium focused on the likes of Yudkin, Phinney and Volek, but on the other hand their findings don't so readily escape into the real world.

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