Ads by Muslim Ad Network

Announcement

Collapse
No announcement yet.

Fake Sugar Could Make You Fat

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

  • Fake Sugar Could Make You Fat

    By Brandon Keim
    February 11, 2008

    Artificial sweeteners don't have any calories, but they might make you fatter than real sugar.

    In a study recently published by Purdue University psychologists in Behavioral Neuroscience, rats given saccharin-sweetened yogurt actually ate more and gained more weight than rats given regularly-sugared yogurt.

    Rodent studies should always be taken with a grain of salt, but the findings strike a potentially disturbing note for the millions of people whose hopes of a shortcut to slimness have fueled a billion-dollar artificial sweetener industry.

    The problem appears to be one of metabolic regulation: when rats ate sugary yogurt, their core body temperature rose, ostensibly to take advantage of a calorie-rich nutrient source. But when rats ate the saccharin-sweetened yogurt, their body temperatures rose only slightly, and they ate more and gained more weight than their counterparts.

    How could this be? The mechanisms aren't entirely clear: perhaps the rats, confused by false sweetness, became artificially sluggish, and thus less able to burn calories. Perhaps they were primed by the sweetness to expect a burst of calories, and when that didn't follow, they kept eating and eating. Perhaps both.

    The findings, note the researchers, seem counterintuitive -- but they could hint at why diet sodas have been tied to metabolic disorders.

    Role for Sweet Taste: Calorie Predictive Relations in Energy Regulation by Rats
    [Behavioral Neuroscience] [.pdf]

    http://blog.wired.com/wiredscience/2...ugar-coul.html
    URGENT!!! your help is badly needed - fundraising for marriage

  • #2
    Re: Fake Sugar Could Make You Fat

    Artificial Sweeteners Linked To Weight Gain

    ScienceDaily (Feb. 11, 2008) — Want to lose weight? It might help to pour that diet soda down the drain. Researchers have laboratory evidence that the widespread use of no-calorie sweeteners may actually make it harder for people to control their intake and body weight.

    Psychologists at Purdue University's Ingestive Behavior Research Center reported that relative to rats that ate yogurt sweetened with glucose (a simple sugar with 15 calories/teaspoon, the same as table sugar), rats given yogurt sweetened with zero-calorie saccharin later consumed more calories, gained more weight, put on more body fat, and didn't make up for it by cutting back later, all at levels of statistical significance.

    Authors Susan Swithers, PhD, and Terry Davidson, PhD, surmised that by breaking the connection between a sweet sensation and high-calorie food, the use of saccharin changes the body's ability to regulate intake. That change depends on experience. Problems with self-regulation might explain in part why obesity has risen in parallel with the use of artificial sweeteners. It also might explain why, says Swithers, scientific consensus on human use of artificial sweeteners is inconclusive, with various studies finding evidence of weight loss, weight gain or little effect. Because people may have different experiences with artificial and natural sweeteners, human studies that don't take into account prior consumption may produce a variety of outcomes.

    Three different experiments explored whether saccharin changed lab animals' ability to regulate their intake, using different assessments --the most obvious being caloric intake, weight gain, and compensating by cutting back.

    The experimenters also measured changes in core body temperature, a physiological assessment. Normally when we prepare to eat, the metabolic engine revs up. However, rats that had been trained to respond using saccharin (which broke the link between sweetness and calories), relative to rats trained on glucose, showed a smaller rise in core body temperate after eating a novel, sweet-tasting, high-calorie meal. The authors think this blunted response both led to overeating and made it harder to burn off sweet-tasting calories.

    "The data clearly indicate that consuming a food sweetened with no-calorie saccharin can lead to greater body-weight gain and adiposity than would consuming the same food sweetened with a higher-calorie sugar," the authors wrote.

    The authors acknowledge that this outcome may seem counterintuitive and might not come as welcome news to human clinical researchers and health-care practitioners, who have long recommended low- or no-calorie sweeteners. What's more, the data come from rats, not humans. However, they noted that their findings match emerging evidence that people who drink more diet drinks are at higher risk for obesity and metabolic syndrome, a collection of medical problems such as abdominal fat, high blood pressure and insulin resistance that put people at risk for heart disease and diabetes.

    Why would a sugar substitute backfire" Swithers and Davidson wrote that sweet foods provide a "salient orosensory stimulus" that strongly predicts someone is about to take in a lot of calories. Ingestive and digestive reflexes gear up for that intake but when false sweetness isn't followed by lots of calories, the system gets confused. Thus, people may eat more or expend less energy than they otherwise would.

    The good news, Swithers says, is that people can still count calories to regulate intake and body weight. However, she sympathizes with the dieter's lament that counting calories requires more conscious effort than consuming low-calorie foods.

    Swithers adds that based on the lab's hypothesis, other artificial sweeteners such as aspartame, sucralose and acesulfame K, which also taste sweet but do not predict the delivery of calories, could have similar effects. Finally, although the results are consistent with the idea that humans would show similar effects, human study is required for further demonstration.

    Journal article: "A Role for Sweet Taste: Calorie Predictive Relations in Energy Regulation by Rats," Susan E. Swithers, PhD and Terry L. Davidson, PhD, Purdue University; Behavioral Neuroscience, Vol. 122, No. 1.
    .
    Adapted from materials provided by American Psychological Association, via EurekAlert!, a service of AAAS.

    American Psychological Association (2008, February 11). Artificial Sweeteners Linked To Weight Gain. ScienceDaily. Retrieved February 11, 2008, from

    http://www.sciencedaily.com­ /releases/2008/02/080210183902.htm
    URGENT!!! your help is badly needed - fundraising for marriage

    Comment


    • #3
      Re: Fake Sugar Could Make You Fat

      OMG that is it, no more half light sugar for me.
      Freedom has a thousand charms to show,
      That slaves, howe'er contented, never know.
      -William Cowper

      Comment


      • #4
        Re: Fake Sugar Could Make You Fat

        stick to the real thing :up:
        Screaming, But Will Never Be Heard

        Comment


        • #5
          Re: Fake Sugar Could Make You Fat

          Originally posted by GuCcI View Post
          stick to the real thing :up:
          absolutely ... chemical sweeteners ... blecchhh ...

          Comment


          • #6
            Re: Fake Sugar Could Make You Fat

            Originally posted by GuCcI View Post
            stick to the real thing :up:
            yes definetly. Real stuff is always better. real sugar and real butter!

            Comment


            • #7
              Re: Fake Sugar Could Make You Fat

              my niece was cryin sayin "chineeh ghwaram" she wanted sugar in her milk loool

              Comment


              • #8
                Re: Fake Sugar Could Make You Fat

                Honey!
                " The issue in palestine will not be solved by the United States or any western country. It's not going to be solved by Dan Six Pack or Sally Soccer mom! " Anwar Al-Awlaki

                Comment

                Working...
                X