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Archived Comments for: A whey-protein supplement increases fat loss and spares lean muscle in obese subjects: a randomized human clinical study

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  1. I believe you mean

    Laura Buti, Oregon State University

    26 January 2011

    (from page 2)
    "Whey proteins also modulate several hormones that influence body
    composition. Short term acute studies with whey proteins corroborate
    the body composition changes seen with longer term feeding studies.
    Whey protein isolate (75 grams per dose) was evaluated [12] for its
    impact on obesity-related hormones in an acute (5 hour) protein
    ingestion in overweight and obese women with polycystic ovary syndrome
    (PCOS). The acute hormonal response showed significantly lower
    hyperinsulinemia (less lipogenesis), lower cortisol levels (lean
    muscle preservation) and increased ghrelin release (satiety
    enhancement)."

    The last line in the paragraph is inaccurate, as even the most amateur
    nutrition student can tell you. Increased ghrelin release stimulates
    appetite, not satiety. Satiety is enhanced by the release of the
    hormone known as leptin, and is released after a meal to let the body
    know it's had enough. A quick reference to research cited earlier
    in the paragraph also indicates the link between ghrelin and hunger,
    and suggests that the acute hormonal response to the whey supplement
    resulted in the suppression of ghrelin, not the increased release of
    the hormone.

    In addition to this inaccurate review of the published material, in
    the methods section of the same article, diet "dairies" are discussed,
    rather than diaries. Thought you'd like to correct the simple typo.

    Competing interests

    None declared

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