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Thread: Protein retards Hunger

  1. #1
    Senior Member kitkat1's Avatar
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    Protein retards Hunger

    Study explains how protein keeps hunger at bay

    Fri Jan 18, 2008 U.S. team identifies possible Parkinsonís trigger
    02 Jan 2008

    By Julie Steenhuysen

    CHICAGO (Reuters) - Diets high in protein may be the best way to keep hunger in check, U.S. researchers said on Thursday in a study that offers insight into how diets work.

    They found that protein does the best job at keeping a hunger hormone in check, while carbohydrates and fats may well deserve their current nasty reputation.

    The study, which will appear in the Journal of Clinical Endocrinology & Metabolism, looked at the effectiveness of different nutrients at suppressing ghrelin, a hormone secreted by the stomach that stimulates appetite.

    "Suppression of ghrelin is one of the ways that you lose your appetite as you begin to eat and become sated," said Dr. David Cummings of the University of Washington in Seattle, who worked on the study.

    The researchers gave 16 people three different beverages, each with varying levels of carbohydrates, fats, and proteins. They took blood samples before the first beverage, then every 20 minutes for six hours afterward, measuring ghrelin levels in each sample.

    "The interesting findings were that fats suppress ghrelin quite poorly," Cummings said in a telephone interview. They fared the poorest overall.

    "Proteins were the best suppressor of ghrelin in terms of the combination of the depth and duration of suppression," he said. "That is truly satisfying because high proteins are essentially common to almost all of the popular diets."

    They also found that eating carbohydrates resulted in a strong ghrelin suppression at first, but ghrelin levels rebounded with a vengeance, rising to an even higher level.

    Basically, the carbohydrates eventually made people even hungrier than before they had eaten.

    Cummings said the findings may aid in future research on the effectiveness of different diets.

    And the study likely means that nightly bowl of ice cream is out. "That is a bad idea no matter what," he said.

    (Editing by Jackie Frank)

  2. #2
    More questions then answers from this article.

    What type's of proteins suppress ghrelin? What are the specific AA that suppress this hormone?

    I might download this article on Monday. The Journal of Clinical Endocrinology & Metabolism is on our database.

  3. #3
    I don't recall anything looking at individual proteins and their effect on ghrelin. Some have compared say, whey vs. casein for their effect on other things (such as GIP and the incretins).

    Given that people consume whole proteins and not individual AAs, I don't see how the second quetion is terribly relevant from an applied point of view.

    Numerous studies have demonstrated a spontaneous reduction in ad-lib caloric intake with higher protein intakes, at least one rsearches (Westerterp-Plantenga) has suggested that one of the reasons low-carb diets work is due to an increased protein intake. This is likely part of the mechanism.

    Lyle
    http://www.bodyrecomposition.com
    http://theproteinbook.lylemcdonald.com

  4. #4
    Quote Originally Posted by lylemcd

    Given that people consume whole proteins and not individual AAs, I don't see how the second quetion is terribly relevant from an applied point of view.
    Given that these whole proteins are broken down into AA. And it is specific AA that has the effects on ghrelin. Supplementation of these specific AA would eventually replace high protein diets. This is how usually supplements come about. Its much easier to swallow a pill then chew through 1 whole chicken.

  5. #5
    Administrator Charlie Francis's Avatar
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    Quote Originally Posted by Sharmer
    Given that these whole proteins are broken down into AA. And it is specific AA that has the effects on ghrelin. Supplementation of these specific AA would eventually replace high protein diets. This is how usually supplements come about. Its much easier to swallow a pill then chew through 1 whole chicken.
    Is that cooked?? Seriously though, AAs can do wonders and you are in the Musashi heartland so there's lots of info out there about their specific individual uses. Carnitine is very important because it is involved in nerve function and fat metabolism and is destroyed by heat. it can make a big difference when you've been short of it.

  6. #6
    i dont notice anything from carnitine to be honest. I'm not sure if its from the brand or whatever the situation.

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